The Treaty of Ried was signed between Bavaria and Austria.
Source
Kenyan environmentalist Wangari Maathai became the first African female to win the Nobel Peace Prize.
Kepler's Supernova was discovered.
Isabella of Angoulême was crowned Queen consort of England at Westminster Abbey, London.
Inventor Percy L. Spencer patented the Microwave Oven.
Captain James Cook landed on Poverty Bay, New Zealand, where he studied and explored the land.