1939, 20th April: Adolf Hitler’s 50th birthday celebrated as a public holiday in Germany.
1946, 20th April: The League of Nations, the erstwhile institution of the United Nations, was disbanded.
1972, 20th April: The Apollo-16 expedition landed on the moon after battling for six hours. The team of John Young and Charles Duke became the fifth team in history to land on the moon.
1997, 20th April: Indra Kumar Gujral became the 12th Prime Minister of India.
2006, 20th April: India announced to establish its first foreign military base in Tajikistan.
2008, 20th April: Danica Patrick became the first female driver to win an indie car race.
2011, 20th April: The Indian Space Research Organization (ISRO) satellite launch vehicle ‘PSLV’ successfully placed three satellites into space.
1808: Napoleon III, the first president of France.
1889: Adolf Hitler, a German politician, and leader of the Nazi Party.
1914: Gopinath Mohanty, an Indian novelist.
1939: Ustad Hussain Sayeeduddin Dagar, an Indian classical vocalist.
1950: N. Chandrababu Naidu, an Indian politician and former chief minister of Andhra Pradesh.
1966: David Filo, an American billionaire businessman and the co-founder of Yahoo! with Jerry Yang.
1972: Mamta Kulkarni, a former Indian actress, and model.
1918: Karl Ferdinand Braun was a German electrical engineer, inventor, and physicist.
1960: Pannalal Ghosh, an Indian flute player, and composer.
1970: Shakeel Badayuni, an Indian Urdu poet, lyricist, and songwriter.