1436 - Regiomontanus (Johannes Muller), prepares astronomical tables
1772 - Haitian explorer Jean Baptiste-Pointe Dusable settles Chicago
1809 - Sweden declares independence, constitutional monarchy established with a new constituion empowering Riksdag after 20 years of absolute monarchy
1859 - Australia: Queensland is established as a separate colony from New South Wales (Queensland Day).
1882 - Electric iron patented by Henry W Seely, NYC
1966 - Gemini 9 completes 45 orbits after rendezvous with "angry alligator"
