A national holiday in Turkey the Commemoration of Atatürk, Youth and Sports Day is celebrated on the 19th of May. It commemorates Mustafa Kemal's landing at Samsun on May 19, 1919, which... is regarded as the beginning of the Turkish War of Independence.
vFestival of Youth and Sports, 1939, Turkey Unknown authorUnknown author, Public domain, via Wikimedia Commons