1850-Robert McClure sights the fabled Northwest Passage for the first time, from Banks Island towards Melville Island 1861-The Pony Express (Missouri to California) ends after 19 months 1863-International conference begins in Geneva aimed at improving medical conditions on battlefields, leads to the formation of the Red Cross 1977-Last natural case of smallpox is discovered in Merca District, Somalia, and is considered the anniversary of the eradication of smallpox, the most spectacular success of vaccination 1994-Jordan & Israel sign peace accord 2019-Raid by U.S. Special Forces kills ISIS founder and leader Abu Bakr al-Baghdadi in Syria