Yuri's Day, April 12, is one of the L5 National Holidays. It celebrates Yuri Gagarin's 12 April 1961 first human orbital spaceflight of the Earth, the first human to travel into space.

Yuri's Night is "the world space party" celebrated across the globe - and into space. For more information about the Yuri's Night World Space Party, see https://yurisnight.net/

For more information about the L5 National Holidays, see https://L5Nation.com