AD 100

AD 100 in various calendars
Gregorian calendar	AD 100; C
Ab urbe condita	853
Assyrian calendar	4850
Balinese saka calendar	21–22
Bengali calendar	−493
Berber calendar	1050
Buddhist calendar	644
Burmese calendar	−538
Byzantine calendar	5608–5609
Chinese calendar	己亥年 (Earth Pig); 2797 or 2590; — to —; 庚子年 (Metal Rat); 2798 or 2591
Coptic calendar	−184 – −183
Discordian calendar	1266
Ethiopian calendar	92–93
Hebrew calendar	3860–3861
Hindu calendars
- Vikram Samvat	156–157
- Shaka Samvat	21–22
- Kali Yuga	3200–3201
Holocene calendar	10100
Iranian calendar	522 BP – 521 BP
Islamic calendar	538 BH – 537 BH
Javanese calendar	N/A
Julian calendar	AD 100; C
Korean calendar	2433
Minguo calendar	1812 before ROC; 民前1812年
Nanakshahi calendar	−1368
Seleucid era	411/412 AG
Thai solar calendar	642–643
Tibetan calendar	阴土猪年; (female Earth-Pig); 226 or −155 or −927; — to —; 阳金鼠年; (male Iron-Rat); 227 or −154 or −926

Millennium:	1st millennium
Centuries:	1st century BC; 1st century ; 2nd century;
Decades:	80s; 90s; 100s ; 110s; 120s;
Years:	97; 98; 99; AD 100 ; 101; 102; 103;

AD 100 (C) was a leap year starting on Wednesday (link will display the full calendar) of the Julian calendar. In the Roman Empire, it was sometimes referred to as year 853 ab urbe condita, i.e., 853 years since the founding of Rome in 753 B.C. The denomination AD 100 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Events

Emperor Trajan and Sextus Julius Frontinus become Roman Consuls.
Bricks become the primary building material in the Roman Empire.
Pliny the Younger advances to consulship, giving his panegyric on Trajan in the process.
The Roman Army reaches 300,000 soldiers.
Titus Avidius Quietus' rule as governor of Roman Britain ends.
Timgad (Thamugas), a Roman colonial town in North Africa is founded by Trajan.
Trajan creates a policy intended to restore the former economic supremacy of Italy.
The future emperor, Hadrian, marries Vibia Sabina.

The Hopewell tradition begins in what is now Ohio c. this date.
Teotihuacan, at the center of Mexico, reaches a population of 50,000.
The Moche civilization emerges, and starts building a society in present-day Peru.

Appearance of the first Christian dogma and formulas regarding morality.
The Gospel of John is widely believed to have been written around this date.^[1]
The compilation of the Kama sutra begins in India.
The Temple of the God of Medicine is built in Anguo, China.
The Fourth Buddhist Council is convened c. this year.