1964 Kenya became a republic

1901 Guglielmo Marconi sent and received the first wireless message across the Atlantic Ocean

1903 Innovation of the aeroplane

1814 Innovation of the steam locomotive (engine)

1945 International Monetary Fund was formally established by 29 member countries

1940 Winston Churchill became British Prime Minister, replacing Neville Chamberlain

1808 The slave trade became illegal when the United States enacted a law banning the importation of slaves

1932 Radio City Music Hall opened in New York City

1963 President John F. Kennedy signed the United States Equal Pay Act into law

1921 The Communist Party of China (CPC) was formed, and Chen Duxiu was elected its leader

1997 The United Kingdom returned Hong Kong to the People's Republic of China

1994 Nelson Mandela sworn in as the first black president of South Africa

1965 United States President Lyndon B. Johnson signed the Voting Rights Act into law

1836 Spain recognized the independence of Mexico by signing the Santa María–Calatrava Treaty

1876 Innovation of the telephone

1924 Astronomer Edwin Hubble formally announced that the Milky Way is just one of many galaxies in the universe