📜 This Day in History
March 17
455After arranging for the assassination of Valentinian III, Petronius Maximus secured the throne of the Western Roman Empire, only to be killed 11 weeks later during the sack of Rome.- 1776American Revolutionary War: The 11‑month Siege of Boston ended with the evacuation of the city's British garrison.
- 1917World War I: Hugh Grosvenor, 2nd Duke of Westminster led a force to rescue 92 prisoners of war from Bir Hakeim, killing the Senussi guards and their families.
- 1957A plane crash on the slopes of Mount Manunggal killed Philippine president Ramon Magsaysay and 24 others.
- 1979The Penmanshiel Tunnel in the Scottish Borders collapsed during refurbishing construction, killing two workers, and leading to the abandonment of the tunnel.
- 2011First Libyan Civil War: The United Nations Security Council adopted Resolution 1973, authorizing military intervention in Libya to protect civilians.