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

1767 King Taksin was crowned King of Thailand (Siam)

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

1835 The Treaty of New Echota was signed between the United States Government and representatives of a minority Cherokee Political Faction

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

1964 Kenya became a republic

1949 Queen Juliana of the Netherlands signed the papers to grant independence to Indonesia

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

1903 Innovation of the aeroplane

2003 The Spirit Rover was launched by NASA to start the Mars Exploration Rover mission

1876 Innovation of the telephone

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

1895 German physicist Wilhelm Conrad Röntgen discovered X-Rays

1814 Innovation of the steam locomotive (engine)

1804 Haiti declared its independence from France

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