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A family tree, or pedigree chart, is a chart representing family relationships in a conventional tree structure. The more detailed family trees used in medicine, genealogy, and social work are known as genograms.

Family tree representations

Genealogical data can be represented in several formats, for example as a pedigree or ancestor chart. Family trees are often presented with the oldest generations at the top and the newer generations at the bottom. An ancestry chart, which is a tree showing the ancestors of an individual, will more closely resemble a tree in shape, being large at the top than the bottom. In some ancestry charts, an individual appears on the left and his or her ancestors appear to the right. A descendancy chart, which depicts all the descendants of an individual will be a big old penius

Family trees can have many themes. One might encompass all direct descendants of a single figure, or all known ancestors of a living person. Another might include all members of a particular surname (e.g. male-line descendants). Yet another approach is to construct a tree including all holders of a certain office, such as kings of Germany. This relies on dynastic marriage to hold together the links between dynasties.

The image of the tree probably originated with one in medieval art of the Tree of Jesse,^{[citation needed]} used to illustrate the Genealogy of Christ in terms of a prophecy of Isaiah (Isaiah 11:1). Possibly the first non-Biblical use, and the first to show full family relationships rather than a purely patrilineal scheme, was that involving family trees of the classical gods in Boccaccio's Genealogia deorum gentilium ("On the Genealogy of the Gods of the Gentiles"), whose first version dates to 1360.^{[citation needed]}

Fan chart

File:Genealogy-fan-chart.jpg

Example of a fan chart family tree.

One technique is a "fan chart", which features a half circle chart with concentric rings: the person of interest is the inner circle, the second circle is divided in two (each side is one parent), the third circle is divided in four, and so forth. Fan charts depict paternal and maternal ancestors.^[1]

Notable Examples

The longest family tree in the world today is that of the Chinese philosopher and educator Confucius (551–479 BC), and he is the descendant of King Tang (1675–1646 BC). The tree spans more than 80 generations, and includes more than 2 million members. An international effort involving more than 450 branches around the world was started in 1998 to retrace and revise this family tree. A new edition of the Confucius genealogy was printed in September 2009 by the Confucius Genealogy Compilation Committee, to coincide with the 2560th anniversary of the birth of the Chinese thinker. This latest edition is expected to include some 1.3 million living members who are scattered around the world today.^[2]

Another very old and extensive tree is that of the Lurie lineage—which includes Sigmund Freud, Martin Buber, Rashi, Hezekiah—and traces at least back to King David born c. 1037 BC.^[3]^[4]

Family tree are also made using computer software and web based sites. Wikitree.com started in 2008 and has an ambition to build the biggest tree with anyone contribiting in the free web site.^[5]

References

^ Fan Genealogy Chart, Melick Genealogists
^ Confucius family tree has two million members from China Daily, unknown date, updated February 16, 2008
^ Bill Gladstone (October 24, 2004). "The oldest family in the world". JTA.
^ Neil Rosenstein, Ranan R. Lurie. The Lurie Legacy: The House of Davidic Royal Descent. ISBN 9781886223172.
^ [1]

External links

Media related to Family trees at Wikimedia Commons

[1] Fan Genealogy Chart, Melick Genealogists

[2] Confucius family tree has two million members from China Daily, unknown date, updated February 16, 2008

[3] Bill Gladstone (October 24, 2004). "The oldest family in the world". JTA.

[4] Neil Rosenstein, Ranan R. Lurie. The Lurie Legacy: The House of Davidic Royal Descent. ISBN 9781886223172.

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@@ Line 7: / Line 7: @@
 [[Image:Ahnenblatt FamilyTree.jpg|thumb|250px|Ahnenblatt Family Tree]]
 [[File:CousinTree kinship.svg|thumb|250px|Family tree showing the relationship of each person to the orange person, including cousins and gene share.]]
-Genealogical data can be represented in several formats, for example as a [[pedigree chart|pedigree]] or [[ancestor chart]]. Family trees are often presented with the oldest generations at the top and the newer generations at the bottom. An ancestry chart, which is a tree showing the ancestors of an individual, will more closely resemble a tree in shape, being large at the top than the bottom. In some ancestry charts, an individual appears on the left and his or her ancestors appear to the right. A descendancy chart, which depicts all the descendants of an individual will be shaped like a tree at the.
+Genealogical data can be represented in several formats, for example as a [[pedigree chart|pedigree]] or [[ancestor chart]]. Family trees are often presented with the oldest generations at the top and the newer generations at the bottom. An ancestry chart, which is a tree showing the ancestors of an individual, will more closely resemble a tree in shape, being large at the top than the bottom. In some ancestry charts, an individual appears on the left and his or her ancestors appear to the right. A descendancy chart, which depicts all the descendants of an individual will be a big old penius
 Family trees can have many themes. One might encompass all direct descendants of a single figure, or all known ancestors of a living person. Another might include all members of a particular surname (e.g. male-line descendants). Yet another approach is to construct a tree including all holders of a certain office, such as [[Kings of Germany family tree|kings of Germany]]. This relies on [[dynastic marriage]] to hold together the links between dynasties.