Ancestry.com Inc., formerly The Generations Network, is a publicly traded Internet company (NASDAQ: ACOM) based in Provo, Utah, USA. The largest for-profit genealogy company in the world, it operates a network of genealogical and historical record websites focused on the U.S. and nine foreign countries, develops and markets genealogical software, and offers a wide array of genealogical related services. As of December 2011, the company provided access to more than 8 billion records, 31 million family trees, and more than 1.7 million paying subscribers.

In addition to its flagship site, Ancestry.com operates Genealogy.com, MyFamily.com, ProGenealogists, and Rootsweb.com, and owns Footnote.com, which provides images of historical records. Family Tree Maker software, developed and marketed by the company, is the largest selling genealogical software in the world.^{[citation needed]}

Under its subsidiaries, Ancestry.com operates foreign sites that provide access to services and records specific to other countries in the languages of those countries. These include several countries in Europe (covered by Ancestry.com Europe S.à r.l.) as well as Australia, Canada, and China. According to the company's latest annual report, Spectrum Equity Investors is a majority owner in the business.

An ancestor or forebear is a parent or (recursively) the parent of an ancestor (i.e., a grandparent, great-grandparent, great-great-grandparent, and so forth).

Two individuals have a genetic relationship if one is the ancestor of the other, or if they share a common ancestor. In evolutionary theory, species which share an evolutionary ancestor are said to be of common descent. However, this concept of ancestry does not apply to some bacteria and other organisms capable of horizontal gene transfer.

Assuming that all of an individual's ancestors are otherwise unrelated to each other, that individual has 2ⁿ ancestors in the nth generation before him and a total of about 2^g+1 ancestors in the g generations before him. In practice, however, it is clear that the vast majority of ancestors of humans (and indeed any other species) are multiply related (see Pedigree collapse). Consider n = 40: the human species is more than 40 generations old, yet the number 2⁴⁰, approximately 10¹² or one trillion, dwarfs the number of humans that have ever lived.

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James Christian "Jimmy" Kimmel (born November 13, 1967) is an American comedian, actor, voice artist and television host. He is the host of Jimmy Kimmel Live!, a late-night talk show that airs on ABC. Prior to that, Kimmel was best known as the co-host of Comedy Central's The Man Show and Win Ben Stein's Money. Kimmel is also a television producer, having produced shows such as Crank Yankers, Sports Show with Norm Macdonald, and The Andy Milonakis Show.

Kimmel was born in the Mill Basin neighborhood of the New York City borough of Brooklyn, the eldest of three children of Joann (née Iacono), a homemaker, and James Kimmel, an IBM executive. He is Roman Catholic and, as a child, served as an altar boy. Kimmel is of German and Irish descent on his father’s side and Italian descent on his mother’s side. His uncle, Frank Potenza, appeared on Jimmy Kimmel Live! as a regular from 2003 until his death in 2011.

The family moved to Las Vegas, Nevada, when he was nine years old. He graduated from Ed W. Clark High School and then attended University of Nevada, Las Vegas for one year before attending Arizona State University for two years without completing a degree.