Question: what happened may 19 1919?
Answer: The Commemoration of Atatürk, Youth and Sports Day (Atatürk'ü Anma, Gençlik ve Spor Bayramı), is an annual Turkish national holiday celebrated on May 19 to commemorate Mustafa Kemal's landing at Samsun on May 19, 1919, which is regarded as the beginning of the Turkish War of Independence in the official historiography.