Passage: Mahmut Celâl Bayar (16 May 1883 – 22 August 1986) was a Turkish politician, who was the third President of Turkey from 1950 to 1960; previously he was Prime Minister of Turkey from 1937 to 1939. Bayar, as the Turkish President, was decorated with the Legion of Merit by the President of the United States, as a result of Turkey's participation in the Korean War. He is considered to be the longest-lived former head of state and was the longest-lived state leader until 8 December 2008 (when he was surpassed by Chau Sen Cocsal Chhum). Celal Bayar died on 22 August 1986 at the age of 103 after a brief illness.

Question: When did Bayar's presidency end?
1960