| 1983 | Ancestry Inc founded by John Sittner, Robert Shaw, and W. Rex Sittner in Utah | Garrett Thesis |
| Publishing genealogy books, magazines, and an “Ancestry Newsletter” | |
| 1990 | Infobases launched by Paul Allen and Dan Taggart in Utah | Deseret News |
| Publishing U.S. census data and family history records on CD-ROM | |
| 1992 | John Sittner puts the Ancestry Inc genealogy databases online | Garrett Thesis |
| 1995 | John Sittner registers the Ancestry.com domain name | |
| 1997 | Infobases acquires Ancestry, Inc and the Ancestry.com website | |
| 1998 | MyFamily.com and FamilyHistory.com established as membership sites | |
| 2000 | RootsWeb acquired by Ancestry | |
| 2002 | Paul Allen leaves Ancestry | |
| 2002 | Ancestry partners with Relative Genetics to sell DNA kits (Y, mtDNA, and atDNA) | |
| 2002 | Ancestry stops selling DNA kits | |
| 2003 ? | Gordon Atkinson leaves Ancestry to start Footnote (a military archive) | |
| 2003 | Ancestry acquires Genealogy.com which includes Family Tree Maker software | |
| 2004 | Call center opened in Provo, Utah | |
| 2007 | Free access from LDS History Centers terminated | |
| 2007 | Spectrum Equity acquires 30% of Ancestry.Com | |
| 2007 | Relative Genetics (DNA lab) acquired by Ancestry | |
| 2009 | Ancestry goes public on the NASDAQ | SEC |
| 2010 | Footnote (with iArchives) acquired by Ancestry (renamed as Fold3) | |
| 2010 | Free access from LDS History Centers restored to Ancestry customers | |
| 2010 | Offices opened in San Francisco | |
| 2012 | Offices opened in Dublin, Ireland | Irish Gov |
| 2012 | GeneTree and Sorenson DNA database acquired by Ancestry | |
| 2012 | We’re Related LLC (founded by Paul Allen) acquired by Ancestry | |
| 2012 | Ancestry Acquires 1000Memories, a photo digitization service | |
| 2012 | Ancestry creates Newspapers.com as a separate archive | |
| 2012 | Permira acquires Ancestry | |
| 2012 | Ancestry launches autosomal DNA kits for U.S. residents | |
| 2013 | FindAGrave acquired by Ancestry | |
| 2013 | Ancestry shuts down the 1000Memories website | |
| 2014 | Ancestry discontinues Y and mtDNA testing | |
| 2014 | Public controversy over law enforcement access of Sorenson database | |
| 2015 | Ancestry shuts down the Sorenson database and website | |
| 2016 | Ancestry sells Family Tree Maker to Software MacKiev | |
| 2016 | Ancestry launches “We’re Related” Mobile App | |
| 2016 | Equity in Ancestry.com is purchased by GIG (Singapore) and Silver Lake | |
| 2017 | Ancestry launches beta of Genetic Communities | |
| 2019 | Thrulines launched by Ancestry | |
| 2019 | Ancestry launches health testing product, AncestryHealth | |
| 2020 | Blackstone Group acquires Ancestry | |
| 2021 | Ancestry discontinues AncestryHealth | |