<Li> The 1985 film Back to the Future, character Doc Brown inputs the date 25 December 0000 on the time circuit's display of the DeLorean time machine as a joke and example of choice for witnessing the birth of Christ . </Li> <Li> In the Seinfeld episode "The Millennium", Jerry notifies Newman there was no year 0 . Since Newman had set up a party for the "Millennium New Year," the party would actually fall on 31 December 2000 / 1 January 2001, and thus his party will be late and "quite lame". Newman then squawks with frustration . </Li> <Li> In the alternate history novel The Probability Broach by L. Neil Smith, in which the United States becomes a libertarian state after a successful Whiskey Rebellion and the overthrowing and execution of George Washington by firing squad for treason in 1794, Thomas Jefferson proposes a new calendar system to mark Albert Gallatin's ascension to the presidency . However, Gallatin protested that the real Revolution was in 1776, that the Federalist period should be regarded as an aberration, and that commemorating, even by implication, the overthrowing and execution of Washington might set a hideous precedent, as Gallatin insisted historians to still count Washington as the first president . In its final form, the Jefferson - Gallatin compromise utilizes 1776 as its "Year Zero". </Li> <Li> Year Zero is an album by the industrial rock group Nine Inch Nails, and is a concept album and Alternate Reality Game based on a post-apocalyptic earth . </Li>

When did we decide when year 0 was