May 18 events in history

332 Constantine the Great announced free distributions of food to the citizens in Constantinople
1096 First Crusade: around 800 Jews are massacred in Worms, Germany
1152 Henry II of England marries Eleanor of Aquitaine
1268 The Principality of Antioch, a crusader state, falls to the Mamluk Sultan Baibars in the Siege of Antioch
1302 Bruges Matins, the nocturnal massacre of the French garrison in Bruges by members of the local Flemish militia
1388 During the Battle of Buyur Lake, General Lan Yu led a Chinese army forward to crush the Mongol hordes of Tögüs Temür, the Khan of Northern Yuan
1499 Alonso de Ojeda sets sail from Cádiz on his voyage to what is now Venezuela
1565 The Great Siege of Malta begins, in which Ottoman forces attempt and fail to conquer Malta
1565 The Royal Audiencia of Concepción is created by a decree of Philip II of Spain
1593 Playwright Thomas Kyd's accusations of heresy lead to an arrest warrant for Christopher Marlowe
1631 In Dorchester, Massachusetts, John Winthrop takes the oath of office and becomes the first Governor of Massachusetts
1652 Rhode Island passes the first law in English-speaking North America making slavery illegal
1756 The Seven Years' War begins when Great Britain declares war on France
1763 Fire destroys a large part of Montreal
1783 First United Empire Loyalists reach Parrtown (later called Saint John), New Brunswick, Canada after leaving the United States
1803 Napoleonic Wars: The United Kingdom revokes the Treaty of Amiens and declares war on France
1804 Napoleon Bonaparte is proclaimed Emperor of the French by the French Senate
1811 Battle of Las Piedras: The first great military triumph of the revolution of the Río de la Plata in Uruguay led by José Artigas
1812 John Bellingham is found guilty and sentenced to death by hanging for the assassination of British Prime Minister Spencer Perceval
1843 The Disruption in Edinburgh of the Free Church of Scotland from the Church of Scotland
1848 Opening of the first German National Assembly (Nationalversammlung) in Frankfurt, Germany
1860 Abraham Lincoln wins the Republican Party presidential nomination over William H. Seward, who later becomes the United States Secretary of State
1863 American Civil War: The Siege of Vicksburg begins
1896 Khodynka Tragedy: A mass panic on Khodynka Field in Moscow during the festivities of the coronation of Russian Tsar Nicholas II results in the deaths of 1,389 people
1896 The United States Supreme Court rules in Plessy v. Ferguson that the "separate but equal" doctrine is constitutional
1900 The United Kingdom proclaims a protectorate over Tonga
1910 The Earth passes through the tail of Comet Halley
1912 The first Indian film, Shree Pundalik by Dadasaheb Torne is released in Mumbai
1917 World War I: The Selective Service Act of 1917 is passed, giving the President of the United States the power of conscription
1926 Evangelist Aimee Semple McPherson disappears while visiting a Venice, California beach
1927 The Bath School disaster: forty-five people are killed by bombs planted by a disgruntled school-board member in Michigan
1927 After being founded for 20 years, the Government of the Republic of China approves Tongji University to be among the first national universities of the Republic of China
1933 New Deal: President Franklin D. Roosevelt signs an act creating the Tennessee Valley Authority
1944 World War II: Battle of Monte Cassino – Conclusion after seven days of the fourth battle as German paratroopers evacuate Monte Cassino
1944 Deportation of Crimean Tatars by the Soviet Union government
1948 The First Legislative Yuan of the Republic of China officially convenes in Nanking
1953 Jackie Cochran becomes the first woman to break the sound barrier
1955 Operation Passage to Freedom, the evacuation of 310,000 Vietnamese civilians, soldiers and non-Vietnamese members of the French Army from communist North Vietnam to South Vietnam following the end of the First Indochina War, ends
1956 First ascent of Lhotse 8,516 meters, by a Swiss team
1958 An F-104 Starfighter sets a world speed record of 1,404.19 mph (2,259.82 km/h)
1959 Launch of the National Liberation Committee of Côte d'Ivoire in Conakry, Guinea
1965 Israeli spy Eli Cohen was hanged in Damascus, Syria
1969 Apollo program: Apollo 10 is launched
1974 Nuclear test: under project Smiling Buddha, India successfully detonates its first nuclear weapon becoming the sixth nation to do so
1974 Completion of the Warsaw radio mast, the tallest construction ever built at the time. It collapsed on August 8, 1991
1980 1980 eruption of Mount St. Helens: Mount St. Helens erupts in Washington, United States, killing 57 people and causing $3 billion in damage
1980 Gwangju Massacre: students in Gwangju, South Korea begin demonstrations calling for democratic reforms
1983 In Ireland, the government launches a crackdown, with the leading Dublin pirate Radio Nova being put off the air
1990 In France, a modified TGV train achieves a new rail world speed record of 515.3 km/h (320.2 mph)
1991 Northern Somalia declares independence from the rest of Somalia as the Republic of Somaliland but is not recognized by the international community