313 – The Edict of Milan, signed by Constantine the Great and co-emperor Valerius Licinius granting religious freedom throughout the Roman Empire, is posted in Nicomedia.
1373 – Anglo-Portuguese Alliance between England (succeeded by the United Kingdom) and Portugal is the oldest alliance in the world which is still in force.
1381 – The Peasants' Revolt led by Wat Tyler culminated in the burning of the Savoy Palace.
1514 – Henry Grace à Dieu, at over 1,000 tons the largest warship in the world at this time, built at the new Woolwich Dockyard in England, is dedicated.
1525 – Martin Luther marries Katharina von Bora, against the celibacy rule decreed by the Roman Catholic Church for priests and nuns.
1740 – Georgia provincial governor James Oglethorpe begins an unsuccessful attempt to take Spanish Florida during the Siege of St. Augustine.
1774 – Rhode Island becomes the first of Britain's North American colonies to ban the importation of slaves.
1777 – American Revolutionary War: Gilbert du Motier, Marquis de Lafayette lands near Charleston, South Carolina, in order to help the Continental Congress to train its army.
1805 – Lewis and Clark Expedition: scouting ahead of the expedition, Meriwether Lewis and four companions sight the Great Falls of the Missouri River.
1881 – The USS Jeannette is crushed in an Arctic Ocean ice pack.
1886 – A fire devastates much of Vancouver, British Columbia.
1893 – Grover Cleveland notices a rough spot in his mouth and on July 1 undergoes secret, successful surgery to remove a large, cancerous portion of his jaw; the operation was not revealed to the public until 1917, nine years after the president's death.
1898 – Yukon Territory is formed, with Dawson chosen as its capital.
1917 – World War I: The deadliest German air raid on London of the war is carried out by Gotha G.IV bombers and results in 162 deaths, including 46 children, and 432 injuries.
1927 – Aviator Charles Lindbergh receives a ticker tape parade down 5th Avenue in New York City.
1944 – World War II: The Battle of Villers-Bocage: German tank ace Michael Wittmann ambushes elements of the British 7th Armoured Division, destroying up to fourteen tanks, fifteen personnel carriers and two anti-tank guns in a Tiger I tank.
1944 – World War II: German combat elements, reinforced by the 17th SS Panzergrenadier Division, launch a counterattack on American forces near Carentan.
1944 – World War II: Germany launches a V1 Flying Bomb attack on England. Only four of the eleven bombs strike their targets.
1952 – Catalina affair: A Swedish Douglas DC-3 is shot down by a Soviet MiG-15 fighter.
1966 – The United States Supreme Court rules in Miranda v. Arizona that the police must inform suspects of their rights before questioning them.
1967 – U.S. President Lyndon B. Johnson nominates Solicitor-General Thurgood Marshall to become the first black justice on the U.S. Supreme Court.
1970 – "The Long and Winding Road" becomes The Beatles' last U.S. number one song.
1971 – Vietnam War: The New York Times begins publication of the Pentagon Papers.
1977 – Convicted Martin Luther King Jr. assassin James Earl Ray is recaptured after escaping from prison three days before.
1981 – At the Trooping the Colour ceremony in London, a teenager, Marcus Sarjeant, fires six blank shots at Queen Elizabeth II.
1982 – Fahd becomes King of Saudi Arabia upon the death of his brother, Khalid.
1983 – Pioneer 10 becomes the first man-made object to leave the central Solar System when it passes beyond the orbit of Neptune.
1990 – First day of the June 1990 Mineriad in Romania. At least 240 strikers and students are arrested or killed in the chaos ensuing from the first post-Ceaușescu elections.
1994 – A jury in Anchorage, Alaska, blames recklessness by Exxon and Captain Joseph Hazelwood for the Exxon Valdez disaster, allowing victims of the oil spill to seek $15 billion in damages.
1996 – The Montana Freemen surrender after an 81-day standoff with FBI agents.
1997 – A jury sentences Timothy McVeigh to death for his part in the 1995 Oklahoma City bombing.
2000 – President Kim Dae-jung of South Korea meets Kim Jong-il, leader of North Korea, for the beginning of the first ever inter-Korea summit, in the northern capital of Pyongyang.
2000 – Italy pardons Mehmet Ali Ağca, the Turkish gunman who tried to kill Pope John Paul II in 1981.
2002 – The United States withdraws from the Anti-Ballistic Missile Treaty.
2007 – The Al Askari Mosque is bombed for a second time.
2010 – A capsule of the Japanese spacecraft Hayabusa, containing particles of the asteroid 25143 Itokawa, returns to Earth.
2012 – A series of bombings across Iraq, including Baghdad, Hillah and Kirkuk, kills at least 93 people and wounds over 300 others.
2013 – Czech investigative authorities start a raid against organized crime, affecting the top levels of Czech politics.
2015 – A man opens fire at policemen outside the police headquarters in Dallas, Texas, while a bag containing a pipe bomb is also found. He was later shot dead by police.
