the Americas. Wells also wrote and presented the 2003 PBS/National Geographic documentary of the same name. Wells has contributed to efforts to determine the date of Y-chromosomal Adam. From 2005-2015, Wells led The Genographic Project, undertaken by the National Geographic Society, IBM, and the Waitt Foundation, which aimed to create a picture of how our ancestors populated the planet by analyzing DNA samples from around the world. The project is credited with creating the personal genomics industry. He has presented the results of his work around the world, including at the 2007 TED conference, where he spoke specifically about human diversity. Wells was a keynote speaker at the Science & Technology Summit in The Hague on November 18, 2010. He also gave the keynote address at the University of Texas College of Natural Sciences commencement exercises on May 21, 2011. Wells was one of the keynote speakers at the Southern California Genealogical Society (SCGS) Jamboree that was co-sponsored by the International Society of Genetic Genealogy (ISOGG) on June 3, 2013. The focus was on Family History and DNA: Genetic Genealogy in 2013, where he was quoted as saying: Since 2005, the Genographic Project has used the latest genetic technology to expand our knowledge of the human story, and its pioneering use of DNA testing to engage and involve the public in the research effort has helped to create a new breed of "citizen scientist." Geno 2.0 expands the scope for citizen science, harnessing the power of the crowd to discover new details of human population history. Opposition to Israeli policies and allegations of anti-Semitism In July 2020, Wells attracted criticism for tweeting that Israel should be bombed “until the sand turns to glass”. Wells was involved in a heated discussion on Twitter, set against a planned Israeli annexation of additional territory in the West Bank. Some of his comments attracted criticism from the online edition of Algemeiner Journal. The University of Texas at Austin subsequently distanced itself from Wells, stating, "Spencer Wells is no longer a faculty or advisory council member at UT. He previously had a courtesy, unpaid appointment as a part-time adjunct that did not involve teaching. That ended in May and was not renewed. We do not have any association with the views held by Mr. Wells." National Geographic subsequently removed all of Wells' content from its site, citing a violation of its journalistic ethics policy. Personal