(2)On Saturday, nearly 200 parties are planned in 50 countries on seven continents to celebrate the anniversary of humanity's first ride into space. Known as 'Yuri's Night,' after Russian Cosmonaut Yuri Gagarin, who made his historic voyage and became the first human in space on April 12, 1961, the holiday has been celebrated in Russia for decades. More details at MSNBC(1).
1. http://cosmiclog.msnbc.msn.com/archive/2008/04/11/879319.aspx
2. http://cosmiclog.msnbc.msn.com/archive/2008/04/11/879319.aspx