On this day in 1913, Crete, having obtained self rule from Turkey after the First Balkan War, was annexed by Greece.
On this day in 1961, the first nuclear reactor in the Republic of China, installed by scientists from the National Tsinghua University campus in Hsinchu, was put into operation.
On this day in 1989, Mikhail Gorbachev became the first Soviet leader to visit the Vatican and meet the Pope, ending 70 years of mutual hostility between the USSR and the Vatican.
On this day in 1990, Channel Tunnel sections started from the United Kingdom and France met 40 metres beneath the seabed.