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
1963 President John F. Kennedy signed the United States Equal Pay Act into law
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
1895 German physicist Wilhelm Conrad Röntgen discovered X-Rays
1814 Innovation of the steam locomotive (engine)