International Nurses Day
World Migratory Birds' Day
254 - Stephan I replaced Lucius I as catholic pope.
1777 - 1st ice cream advertisement (Philip Lenzi-NY Gazette)
1792 - Toilet that flushes itself at regular intervals is patented
1821 - The first big battle of the Greek War of Independence against the Turks occurred in Valtetsi.
1870 - Manitoba became a province of Canada
1921 - National Hospital Day first observed in USA.
2008 - Wenchuan earthquake (measuring around 8.0 magnitude) occurred in Sichuan, China. It killed over 69,000 people
1820 - Florence Nightingale - International Nurses Day is celebrated in her honor.
1895 - Jiddu Krishnamurti, India, philosopher
12 May Knowledge History - Science, Engineering and Management