 In 2009, Tel Aviv celebrated its official centennial.In addition to city- and country-wide celebrations, digital collections of historical materials were assembled.These include the History section of the official Tel Aviv-Yafo Centennial Year website; the Ahuzat Bayit collection, which focuses on the founding families of Tel Aviv, and includes photographs and biographies; and Stanford University's Eliasaf Robinson Tel Aviv Collection, documenting the history of the city.