Air Medal and the 1961 De la Vaulx Medal from the Fédération Aéronautique Internationale in Switzerland. He received numerous awards from other nations that year, including the Star of the Republic of Indonesia (2nd Class), the Order of the Cross of Grunwald (1st Degree) in Poland, the Order of the Flag of the Republic of Hungary, the Hero of Labour award from Democratic Republic of Vietnam, the Italian Columbus Day Medal, and a Gold Medal from the British Interplanetary Society. President Jânio Quadros of Brazil decorated Gagarin on 2 August 1961 with the Order of Aeronautical Merit, Commander grade. During a tour of Egypt in late January 1962, Gagarin received the Order of the Nile and the golden keys to the gates of Cairo. On 22 October 1963, Gagarin and Valentina Tereshkova were honoured with the Order of Karl Marx from the German Democratic Republic. Tributes The date of Gagarin's space flight, 12 April, has been commemorated. Since 1962, it has been celebrated first in the USSR and since 1991 in Russia and some other former Soviet republics as Cosmonautics Day. Since 2000, Yuri's Night, an international celebration, is held annually to commemorate milestones in space exploration. In 2011, it was declared the International Day of Human Space Flight by the United Nations. A number of buildings and locations have been named for Gagarin, mostly in Russia but also in other Soviet republics. The Yuri Gagarin Cosmonaut Training Center in Star City was named on 30 April 1968. The launch pad at Baikonur Cosmodrome from which Sputnik 1 and Vostok 1 were launched is now known as Gagarin's Start. Gagarin Raion in Sevastopol was named after him during the period of the Soviet Union. The Russian Air Force Academy was renamed the Gagarin Air Force Academy in 1968. The town of Gzhatsk where he lived in Smolensk Oblast was renamed Gagarin after his death in 1968, and has since become home to numerous museums and monuments to him. A street in Warsaw, Poland, is called Yuri Gagarin Street. The town of Gagarin, Armenia was renamed in his honour in 1961. Gagarin has been honoured on the Moon by astronauts and astronomers. During the American space programme's Apollo 11 mission in 1969, astronauts Neil Armstrong and Buzz Aldrin left a memorial satchel containing medals commemorating Gagarin and Komarov on the Moon's surface. In 1971, Apollo 15 astronauts David Scott and James