May 22

192 – Dong Zhuo is assassinated by his adopted son Lü Bu. 760 – Fourteenth recorded perihelion passage of Halley's Comet. 853 – A Byzantine fleet sacks and destroys undefended Damietta in Egypt. 1176 – The Hashshashin (Assassins) attempt to assassinate Saladin near Aleppo. 1200 – King John of England and King Philip II of France sign the Treaty of Le Goulet. 1246 – Henry Raspe is elected anti-king of the Kingdom of Germany in opposition to Conrad IV. 1254 – Serbian King Stefan Uroš I and the Republic of Venice sign a peace treaty. 1370 – Brussels massacre: Between six and twenty Jews are murdered and the rest of the Jewish community is banished from Brussels, Belgium, for allegedly desecrating consecrated Host. 1377 – Pope Gregory XI issues five papal bulls to denounce the doctrines of English theologian John Wycliffe. 1455 – Start of the Wars of the Roses: At the First Battle of St Albans, Richard, Duke of York, defeats and captures King Henry VI of England. 1520 – The massacre at the festival of Tóxcatl takes place during the Fall of Tenochtitlan, resulting in turning the Aztecs against the Spanish. 1629 – Holy Roman Emperor Ferdinand II and Danish King Christian IV sign the Treaty of Lübeck ending Danish intervention in the Thirty Years' War. 1762 – Sweden and Prussia sign the Treaty of Hamburg. 1762 – Trevi Fountain is officially completed and inaugurated in Rome. 1766 – A large earthquake causes heavy damage and loss of life in Istanbul and the Marmara region. 1804 – The Lewis and Clark Expedition officially begins as the Corps of Discovery departs from St. Charles, Missouri. 1807 – A grand jury indicts former Vice President of the United States Aaron Burr on a charge of treason. 1809 – On the second and last day of the Battle of Aspern-Essling (near Vienna, Austria), Napoleon I is defeated in a major battle for the first time in his career, and repelled by an enemy army for the first time in a decade. 1816 – A mob in Littleport, Cambridgeshire, England, riots over high unemployment and rising grain costs, and the riots spread to Ely the next day.