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Imagine a world in which every single human being can freely share in the sum of all knowledge.
$2,500,000
September 2019
$1,100,000
January 2019
$3,015,000
January 2017
$250,000
February 2016
$25,000,000
November 2012
$20,000,000
December 2011
$16,000,000
December 2010
$2,000,000
January 2010
$8,000,000
December 2009
July 2009
$62,000,000
December 2008
$3,000,000
February 2008