A nun is a member of a religious community of women, typically one living under vows of poverty, chastity, and obedience. She may be a woman who decided to dedicate her life to serving all other living beings, or to be an ascetic who voluntarily chooses to leave mainstream society and live her life in prayer and contemplation in a monastery or convent. The term "nun" is applicable to Catholics (eastern and western traditions), Orthodox Christians, Anglicans, Lutherans, Jains, Buddhists, Taoists, and Hindus, among other religions.
While in common usage the terms "nun" and "Sister" are often used interchangeably (the same title of "Sister" for the individual member of both forms), they are considered different ways of life, with a "nun" being a religious woman who lives a contemplative and cloistered life of meditation and prayer for the salvation of others, while a "Religious Sister", in religious institutes like Mother Teresa's Missionaries of Charity, lives an active vocation of both prayer and service, often to the needy, sick, poor, and uneducated.
People of the Pali Canon
Lay devotee (m., f.)
All Buddhist traditions have nuns, although their status is different among Buddhist countries. The Buddha is reported to have allowed women into the sangha only with great reluctance, predicting that the move would lead to Buddhism's collapse after 500 years, rather than the 1,000 years it would have enjoyed otherwise. (This prophecy occurs only once in the Canon and is the only prophecy involving time in the Canon, leading some to suspect that it is a late addition.) Fully ordained Buddhist nuns (bhikkhunis) have more Patimokkha rules than the monks (bhikkhus). The important vows are the same, however.
As with monks, there is quite a lot of variation in nuns' dress and social conventions between Buddhist cultures in Asia. Chinese nuns possess the full bhikkuni ordination, Tibetan nuns do not, and in Theravada countries female renunciates are discouraged from even wearing saffron robes. Disparities may often be observed in the amount of respect and financial resources given to monks vs. nuns, with nuns receiving less of both in all countries with the possible exception of Taiwan. Despite barriers, some nuns succeed in becoming religious teachers and authorities.
In Thailand, a ]| \try which never had a tradition of fully ordained nuns (bhikkhuni), there developed a separate order of non-ordained female renunciates called mae ji. However, some of them have played an important role in dharma-practitioners' community. There are in Thai Forest Tradition foremost nuns such as Mae Ji Kaew Sianglam, the founder of the Nunnery of Baan Huai Saai, who is believed to be enlightened as well as Upāsikā Kee Nanayon. At the beginning of the 21st century, some Buddhist women in Thailand have started to introduce the bhikkhuni sangha in their country as well, even if public acceptance is still lacking. Dhammananda Bhikkhuni, formerly the successful academic scholar Dr. Chatsumarn Kabilsingh, established a controversial monastery for the training of Buddhist nuns in Thailand.
Chinese Buddhism possesses a full bhikkuni tradition. Thanks largely to the efforts of Master Cheng Yen of the Buddhist charity Tzu Chi (which utterly dominates philanthropic giving in Taiwan), Taiwan's nuns nowadays probably receive more public respect and support than monks.
Researcher Charles Brewer Jones estimates that since 1952, when the Buddhist Association of the ROC organized public ordination, female applicants have outnumbered males by about three to one. He adds:
- "All my informants in the areas of Taipei and Sanhsia considered nuns at least as respectable as monks, or even more so. [...] In contrast, however, Shiu-kuen Tsung found in Taipei county that female clergy were viewed with some suspicion by society. She reports that while outsiders did not necessarily regard their vocation as unworthy of respect, they still tended to view the nuns as social misfits."
The August 2007 International Congress on Buddhist Women's Role in the Sangha, with the support of H. H. XIVth Dalai Lama, reinstated the Gelongma (Dharmaguptaka vinaya bhikkhuni) lineage, having been lost, in India and Tibet, for centuries. Gelongma ordination requires the presence of ten fully ordained people keeping exactly the same vows. Because ten nuns are required to ordain a new one, the effort to establish the Dharmaguptaka bhikkhu tradition has taken a long time.
It is permissible for a Tibetan nun to receive bhikkhuni ordination from another living tradition, e.g., in Vietnam. Based on this, Western nuns ordained in Tibetan tradition, like Thubten Chodron, took full ordination in another tradition.
The ordination of monks and nuns in Tibetan Buddhism distinguishes three stages: rabjung-ma, getshül-ma and gelong-ma. The clothes of the nuns in Tibet are basically the same as those of monks, but there are differences between novice and gelong robes.
Hokke-ji in 747 was established by the consort of the Emperor. It took charge of provincial convents, performed ceremonies for the protection of the state, and became the site of pilgrimages. Aristocratic Japanese women often became Buddhist nuns in the premodern period. Originally it was thought they could not gain salvation because of the Five Hindrances, which said women could not attain Buddhahood until they changed into men. However, in 1249, 12 women received full ordination as priests.
Roman Catholic 
A Catholic nun is a woman who has taken vow]]s (the male equivalent is often called a monk or friar). A major traditional distinction between a nun and a Religious Sister is that nuns are members of enclosed religious orders and take "solemn" religious vows, through which they renounce all property, including inheritances, while Sisters have "simple" vows, which allows them to inherit property. Also, as monastics, nuns commit themselves to the daily recitation of the Liturgy of the Hours throughout the day in church, usually in a solemn manner. As a result of this way of life, for those making this commitment, they are distinguished within the monastic community under the title of 'choir nuns', as opposed to lay Sisters, who are entrusted with the upkeep of the monastery, or even running errands outside the cloister. This last task, though, is often entrusted to women, called 'externs', who live outside the enclosure proper. They do not belong to the Order of the nuns and were usually either oblates or members of the associated Third Order, often wearing the standard woman's attire of the period.
In general, when a woman enters a convent, monastery or abbey, she first undergoes a period of testing the life for six months to a year called a postulancy. If she, and the Order, determine that she may have a vocation to the life, she receives the habit of the Order (usually with some modification, normally a white veil instead of a black, to distinguish her from professed members) and undertakes the novitiate, a period (that lasts one to two years) of living the life of the religious institute without yet taking vows. Upon completion of this period she may take her initial, temporary vows. Temporary vows last one to three years, typically, and will be professed for not less than three years and not more than six. Finally, she will petition to make her "perpetual profession", taking permanent, solemn vows.
In the branches of the Benedictine tradition, (Benedictines, Cistercians, Camaldolese, and Trappists, among others) nuns take vows of 'stability' (that is, to remain a member of a single monastic community), 'obedience' (to an abbess or prioress), and "conversion of life" (which includes poverty and celibacy). In other traditions, such as the "Poor Clares" (the Franciscan Order) and the Dominican nuns, they take the threefold vows of poverty, chastity and obedience. Most Orders of nuns not listed here follow one of these two patterns, with some Orders taking an additional vow related to the specific work or character of their Order (for example, to undertake a certain style of devotion, praying for a specific intention or purpose).
Cloistered nuns (Carmelites, for example) observe "papal enclosure" rules, and their nunneries typically have walls separating the nuns from the outside world. The nuns rarely leave (except for medical necessity or occasionally for purposes related to their contemplative life) though they may receive visitors in specially built parlors, often with either a grille or half-wall separating the nuns from visitors. They are usually self-sufficient, earning money by selling jams, candies or baked goods by mail order, or by making liturgical items (such as vestments, candles, or hosts to be Consecrated at Mass for Holy Communion).
They often undertake contemplative ministries — that is, a community of nuns is often associated with prayer for some particular good or supporting the missions of another Order by prayer (for instance, the Dominican nuns of Corpus Christi Monastery in the Bronx, New York, pray in support of the priests of the Archdiocese of New York). Yet Religious Sisters can also perform this form of ministry, e.g., the Maryknoll Missionary Sisters have small houses of contemplative Sisters, some in mission locations, who pray for the work of the priests, brothers and other Sisters of their Congregation; the Sister Disciples of the Divine Master are also cloistered Sisters who pray in support of their sister congregation, the Daughters of St. Paul in their media ministry.
A canoness is a nun who corresponds to the male equivalent of canon. The origin and rules of monastic life are common to both. As with the canons, differences in the observance of rule gave rise to two types: the canoness regular, taking the traditional religious vows, and the secular canoness, who did not take vows and thus remained free to own property and leave to marry, should they choose. This was primarily a way of leading a pious life for the women of aristocratic families and generally disappeared in the modern age, except for the modern Lutheran convents of Germany.
A nun who is elected to head her religious house is termed an abbess if the house is an abbey, a prioress if it is a monastery, or more generically may be referred to as "Mother Superior" and styled "Reverend Mother". The distinction between abbey and monastery has to do with the terms used by a particular Order or by the level of independence of the religious house. Technically, a convent is any home of a community of sisters — or, indeed, of priests and brothers, though this term is rarely used in the United States. The term "monastery" is often used by communities within the Benedictine family, and "convent" (when referring to a cloister) is often used of the houses of certain other institutes.
The traditional dress for women in religious communities consists of a tunic, which is tied around the waist with a cloth or leather belt. Over the tunic some nuns wear a scapular which is a garment of long wide piece of woolen cloth worn over the shoulders with an opening for the head. Some wear a white wimple, which "encircles" the face and a veil, the most significant and ancient aspect of the habit. Some Orders—such as the Dominicans—wear a large rosary on their belt. Benedictine abbesses wear a cross or crucifix on a chain around their neck.
After the second Vatican Council, many religious institutes chose in their own regulations to no longer wear the traditional habit and did away with choosing a religious name. Catholic Church canon law states: "Religious are to wear the habit of the institute, made according to the norm of proper law, as a sign of their consecration and as a witness of poverty."
Distinction between a nun and a religious sister 
During the first millennium, nearly all communities of men and women were dedicated to prayer and contemplation. These monasteries, abbeys, or convents were built in remote locations or were separated from the world by means of a cloister. The mendicant orders, founded in the 13th century, combined a life of prayer and dedication to God with active works of preaching, hearing confessions, and service to the poor, and members of these orders are known as friars rather than monks. At that time, Church law did not allow women to leave the cloister if they had taken religious vows. Female members of the mendicant orders (Dominican, Augustinian and Carmelite nuns and Poor Clares) continued to observe the same enclosed life as members of the monastic orders.
Originally, the vows taken by profession in any religious institute approved by the Holy See were classified as solemn. This was declared by Pope Boniface VIII (1235–1303). The situation changed in the 16th century. In 1521, two years after the Fourth Lateran Council had forbidden the establishment of new religious institutes, Pope Leo X established a religious Rule with simple vows for those tertiaries attached to existing communities who undertook to live a formal religious life. In 1566 and 1568, Pope Pius V rejected this class of congregation, but they continued to exist and even increased in number. After at first being merely tolerated, they afterwards obtained approval. In the 20th century, Pope Leo XIII recognized as religious all men and women who took simple vows. Their lives were oriented not to the ancient monastic way of life, but more to social service and to evangelization, both in Europe and in mission areas. Their number had increased dramatically in the upheavals brought by the French Revolution and subsequent Napoleonic invasions of other Catholic countries, depriving thousands of religious of the income that their communities held because of inheritances and forcing them to find a new way of living the religious life. But members of these new associations were not recognized as "religious" until Pope Leo XIII's Constitution "Conditae a Christo" of 8 December 1900.
The 1917 Code of Canon Law reserved the term "nun" (Latin: monialis) for women religious who took solemn vows or who, while being allowed in some places to take simple vows, belonged to institutes whose vows were normally solemn. It used the word "sister" (Latin: soror) exclusively for members of institutes for women that it classified as "congregations"; and for "nuns" and "sisters" jointly it used the Latin word religiosae (women religious). The same religious Order could include both "nuns" and "sisters", if some members took solemn vows and others simple vows.
The new legal code of the Catholic Church which was adopted in 1983, however, remained silent on this matter. Whereas previously, the Code distinguised between Orders and congregations, the Code refers simply to religious institutes.
Nuns have played an important role in Canada, especially in heavily Catholic Quebec. Outside the home, Canadian women had few domains which they controlled. An important exception came with Roman Catholic nuns, especially in Québec. Stimulated by the influence in France, the popular religiosity of the Counter Reformation, new orders for women began appearing in the seventeenth century. In the next three centuries women opened dozens of independent religious orders, funded in part by dowries provided by the parents of young nuns. The orders specialized in charitable works, including hospitals, orphanages, homes for unwed mothers, and schools.
Eastern Orthodox 
In the Eastern Orthodox Church there is no distinction between a monastery for women and one for men. In Greek, Russian, and other Eastern European languages, both domiciles are called "monasteries" and the ascetics who live therein are "Monastics". In English, however, it is acceptable to use the terms "nun" and "convent" for clarity and convenience. The term for an abbess is the feminine form of abbot (hegumen)—Greek: hegumeni; Serbian: Игуманија (Igumanija); Russian: игумения, (igumenia). Orthodox monastics do not have distinct "orders" as in Western Christianity. Orthodox monks and nuns lead identical spiritual lives. There may be slight differences in the way a monastery functions internally but these are simply differences in style (Gr. typica) dependent on the Abbess or Abbot. The Abbess is the spiritual leader of the convent and her authority is absolute (no priest, bishop, or even patriarch can override an abbess within the walls of her monastery.) There has always been spiritual equality between men and women in the Orthodox Church (Galatians 3:28). Abbots and Abbesses rank in authority equal to bishops in many ways and were included in ecumenical councils. Orthodox monasteries are usually associated with a local synod of bishops by jurisdiction, but are otherwise self-governing. Abbesses hear confessions (but do not absolve) and dispense blessings on their charges, though they still require the services of a presbyter (i.e., a priest) to celebrate the Divine Liturgy and perform other priestly functions, such as the absolution of a penitent.
Orthodox monastics, in general have little or no contact with the outside world, especially family. The pious family whose child decides to enter the monastic profession understands that their child will become "dead to the world" and therefore be unavailable for social visits.
There are a number of different levels that the nun passes through in her profession:
- Novice—When one enters a monastery the first three to five years are spent as a novice. Novices may or may not (depending on the abbess's wishes) dress in the black inner robe (Isorassa); those who do will also usually wear the apostolnik or a black scarf tied over the head (see photo, above). The isorassa is the first part of the monastic "habit" of which there is only one style for Orthodox monastics (this is true in general, there have been a few slight regional variations over the centuries, but the style always seems to precipitate back to a style common in the 3rd or 4th century). If a novice chooses to leave during the novitiate period no penalty is incurred.
- Rassaphore—When the abbess deems the novice ready, the novice is asked to join the monastery. If she accepts, she is tonsured in a formal service during which she is given the outer robe (Exorassa) and veil (Epanokamelavkion) to wear, and (because she is now dead to the world) receives a new name. Nuns consider themselves part of a sisterhood; however, tonsured nuns are usually addressed as "Mother" (in some convents, the title of "Mother" is reserved to those who enter into the next level of Stavrophore).
- Stavrophore—The next level for monastics takes place some years after the first tonsure when the abbess feels the nun has reached a level of discipline, dedication, and humility. Once again, in a formal service the nun is elevated to the "Little Schema" which is signified by additions to her habit of certain symbolic articles of clothing. In addition, the abbess increases the nun’s prayer rule, she is allowed a stricter personal ascetic practice.
- Great Schema—The final stage, called "Megaloschemos" or "Great Schema" is reached by nuns whose Abbess feels they have reached a high level of excellence. In some monastic traditions the Great Schema is only given to monks and nuns on their death bed, while in others they may be elevated after as little as 25 years of service.
The Protestant reformers such as Martin Luther said marriage was the normal role for men and women, and shut down the monasteries and convents, often over the protests of the nuns. A modern resurgence of the early Christian Deaconess office for women began in Germany in the 1840s and spread through Scandinavia, Britain and the United States. Lutherans were especially active. The modern movement reached a zenith about 1910, then slowly declined as secularization undercut religiosity in Europe, and the professionalization of nursing and social work offered better career opportunities for young women. A small movement still exists, and its legacy is seen in the names of numerous hospitals.
Anglican Communion 
Religious communities throughout England were destroyed by King Henry VIII when he separated the Church of England from the Catholic Church during the English Reformation (see Dissolution of the Monasteries). Monasteries and convents were deprived of their lands and possessions, and monastics were forced to either live a secular life on a pension or flee the country. Many nuns went to France.
Anglican religious orders are organizations of laity and/or clergy in the Anglican Communion who live under a common rule. The term "religious orders" must be distinguished from Holy Orders (the sacrament of ordination which bishops, priests, and deacons receive), though many communities do have ordained members.
The structure and function of religious orders in Anglicanism roughly parallels that which exists in Roman Catholicism. Religious communities are divided into orders proper, in which members take solemn vows and congregations, whose members take simple vows.
With the rise of the Catholic Revival and the Oxford Movement in Anglicanism in the early 19th century came interest in the revival of "religious life" in England. Between 1841 and 1855, several religious orders for nuns were founded, among them the Community of St. Mary at Wantage and the Community of St. Margaret at East Grinstead.
In the United States and Canada, the founding of Anglican religious orders of nuns began in 1845 with the Sisterhood of the Holy Communion (now defunct) in New York.
Whilst there is no single central authority for all religious orders, and many member churches of the Anglican Communion have their own internal structures for recognising and regulating religious orders, some central functions are performed by the Anglican Religious Communities department at Church House, Westminster, the headquarters of the Church of England, Church Commissioners, General Synod, Archbishops' Council, and National Society. This department publishes the bi-annual Anglican Religious Life, a world directory of religious orders, and also maintains an official Anglican Communion website for religious orders. Anglican Religious Life defines four categories of community.
- Traditional celibate Religious Orders and Communities, whose members take a vow of celibacy (amongst other vows) and follow a common Rule of life. They may be enclosed and contemplative or open and engaged in apostolic works.
- Dispersed Communities. These are orders or communities whose members, whilst taking vows (including celibacy), do not live together in community. In most cases the members are self-supporting and live alone, but follow the same Rule of life, and meet together frequently in assemblies often known as 'Chapter meetings'. In some cases some members may share a common life in very small groups of two or three.
- Acknowledged Communities. These communities live a traditional Christian life, including the taking of vows, but the traditional vows are adapted or changed. In many cases these communities admit both single and married persons as members, requiring celibacy on the part of those who are single, and unfailing commitment to their spouse on the part of married members. They also amend the vow of poverty, allowing personal possessions, but requiring high standards of tithing to the community and the wider church. These communities often have residential elements, but not full residential community life, as this would be incompatible with some elements of married family life.
- Other Communities. This group contains communities that are ecumenical (including Anglicans) or that belong to non-Anglican churches that have entered into relationships of full communion with the Anglican Church (particularly, but not only, certain Lutheran churches).
In the United States of America (only), there is a clear distinction between 'orders' and 'communities', since the Episcopal Church has its own two-fold definition of "Religious Orders" (equivalent to the first two groups above) and "Christian Communities" (equivalent to the third group above). This distinction is unique to the United States of America. The Anglican Religious Life directory affirms this, stating "This distinction in not used in other parts of the Anglican Communion where 'communities' is also used for those who take traditional vows."
In some Anglican orders, there are sisters who have been ordained and can celebrate the Eucharist.
In popular culture 
Nuns play an important role in the public's imagination. The following list of notable works where nuns play a major part ranges from A Time for Miracles which is literally hagiography to realistic accounts by Kathryn Hulme and Monica Baldwin to the blatant nunsploitation of Sacred Flesh. All the works use Catholic nuns save Black Narcissus (Anglican). All are outsiders' views with the exceptions of Dead Man Walking, a film based on a non-fiction book of the same title by Helen Prejean, and The Nun's Story, a book by Kathryn Hulme relating the experiences of ex-nun Marie Louise Habets.
See also 
- Deaconess, Protestant religious women
- Monk, the male monastic
- Catholic religious order
- Category:Nunsploitation films
- The Oxford English Dictionary, vol X, page 599.
- Hellmuth Hecker, .
- Mae Chee Kaew - Her Journey to Spiritual Awakening & Enlightenment e-book[dead link]
- Upasika Kee Nanayon and the Social Dynamic of Theravadin Buddhist Practice
- Buddhist Channel | Buddhism News, Headlines | Issues | Authoritarianism of the holy kind
- Bhikkhuni Dhammananda
- Thai Bhikkhunis - Songdhammakalyani Monastery
- Charles Brewer Jones, Buddhism in Taiwan: Religion and the State, 1660-1990; University of Hawaii Press, 1999; pp. 154-155
- Lori Meeks, Hokkeji and the Reemergence of Female Monastic Orders in Premodern Japan (2010) excerpt and text search
- Canon 648, CIC 1983
- Canon 656, CIC 1983
- Canon 655, CIC 1983
- Canon 657, CIC 1983
- Canon 667 §3, CIC 1983, SCRIS instruction, "Venite seorsum" August 15, 1969, in AAS 61 (1969) 674–690
- Code of Canon Law, canon 669 §1
- Arthur Vermeersch, "Religious Life" in The Catholic Encyclopedia.,Vol. 12. New York: Robert Appleton Company, 1911. Accessed 18 July 2011
- "Illud solum votum debere dici solemne . . . quod solemnizatum fuerit per suceptionem S. Ordinis aut per professionem expressam vel tacitam factam alicui de religionibus per Sedem Apostolicam approbatis" (C. unic. de voto, tit. 15, lib. III in 6, quoted in Celestine Anthony Freriks, Religious Congregations in Their External Relations, p. 17).
- Constitution "Conditae a Christo" of 8 December 1900, cited in Mary Nona McGreal, Dominicans at Home in a New Nation, chapter 11
- Cited in Mary Nona McGreal, Dominicans at Home in a New Nation, chapter 11
- Code of Canon Law of 1917, canon 488
- Thomas Carr, Jr., "Writing the Convent in New France: The Colonialist Rhetoric of Canadian Nuns," Quebec Studies (2009), Issue 47, pp 3-23.
- Archpriest Seraphim Slobodskoy, The Law of God (Printshop of St. Job of Pochaev, Jordanville, NY, ISBN 0-88465-004-8), p. 618.
- Cynthia A. Jurisson, "The Deaconess Movement," in Rosemary Skinner Keller et al., eds. Encyclopedia of Women and Religion in North America (Indiana U.P., 2006). pp. 821-33 online
- Anglican Religious Life 2012-13, published Canterbury Press, Norwich, 2011, ISBN 978-1-84825-089-5, pages iii, iv, 19, 147, 151, & 171.
- See Title III, Canon 24, sections 1 and 2 of the Canons of the Episcopal Church in the United States of America, also quoted at Anglican Communion Religious Communities.
- Anglican Religious Life 2012-13, published Canterbury Press, Norwich, 2011, ISBN 978-1-84825-089-5, page 151.
- What We Do[dead link] sisters of St. Margaret, (Episcopal religious community of women)
Further reading 
- Arai, Paula Kane Robinson. Women Living Zen: Japanese Soto Buddhist Nuns )1999)
- Bechert, Heinz and Richard Francis Gombrich. The World of Buddhism: Buddhist Monks and Nuns in Society and Culture (1991)
- McGuinness Margaret M. Called to Serve: A History of Nuns in America (New York University Press, 2013) 266 pages;
- McNamara, Jo Ann Kay. Sisters in Arms: Catholic Nuns through Two Millennia (1998)excerpt and text search
- Power, Eileen, Medieval English Nunneries c. 1275 to 1535 (1922) online
- Shank, Lillian Thomas, and John A. Nichols, eds. Medieval Religious Women: Distant Echoes (1984)
- Shank, Lillian Thomas, and John A. Nichols, eds. Medieval Religious Women: Peaceweavers (1987)
|Wikimedia Commons has media related to: Nuns|
- Blogs by Catholic nuns
- Vocation-Network.org[dead link] information about Catholic religious communities and life as a sister, brother, or priest.
- VocationMatch.com helps those discerning a Catholic religious vocation sort through options and find the order or vocation that may be right for them.
- DigitalVocationGuide.org digital edition of VISION, the annual Catholic religious vocation discernment guide.
- Monastic Matrix: A Scholarly Resource for the Study of Women's Religious Communities 400-1600 C.E.
- Full Text + Illustrations, The Hermits and Anchorites of England by Rotha Mary Clay.
- Nuns of Medieval England, Full Text + Illustrations.
- Religious Orders including Female Religious. Full Text + Illustrations.
- Medieval Shrines of British Saints, including sainted women religious. Full Text + Illustrations.
- Nuns article from The Catholic Encyclopedia
- Instruction on the Contemplative Life and on the Enclosure of Nuns Verbi Sponsa of the Vatican's Congregation for Institutes of Consecrated Life and for Societies of Apostolic Life
- A Biography of a Vajrayana Buddhist Nun
- Martin Luther's letter To Several Nuns, August 6, 1524. (Two reasons life at the convent and vows may be forsaken)
- Sakyadhita — The International Association of Buddhist Women
- The Ursulines Sisters
- The Dominican Monastery of Saint Jude
- Our Lady of the Holy Rosary Monastery in Buffalo NY (A Dominican contemplative monastery with Latin chant)
- Ursuline Sisters in Cincinnati, Ohio