1215 – King John of England put his seal on the Magna Carta.
1381 – The English peasant revolt was crushed in London.
1389 – Ottoman Turks crushed Serbia in the Battle of Kosovo.
1607 – Colonists in North America completed James Fort in Jamestown.
1667 – Jean-Baptiste Denys administered the first fully-documented human blood transfusion. He successfully transfused the blood of a sheep to a 15-year old boy.
1752 – Benjamin Franklin experimented by flying a kite during a thunderstorm. The result was a little spark that showed the relationship between lightning and electricity.
1775 – George Washington was appointed head of the Continental Army by the Second Continental Congress.
1836 – Arkansas became the 25th U.S. state.
1844 – Charles Goodyear was granted a patent for the process that strengthens rubber.
1846 – The United States and Britain settled a boundary dispute concerning the boundary between the U.S. and Canada, by signing a treaty.
1864 – An order to establish a military burial ground was signed by Secretary of War Edwin M. Stanton. The location later became known as Arlington National Cemetery.
1866 – Prussia attacked Austria.
1877 – Henry O. Flipper became the first African American to graduate from the U.S. Military Academy at West Point.
1898 – The U.S. House of representatives approved the annexation of Hawaii.
1909 – Benjamin Shibe patented the cork center baseball.
1911 – The Computing-Tabulating-Recording Co. was incorporated in the state of New York. The company was later renamed International Business Machines (IBM) Corp.
1916 – U.S. President Woodrow Wilson signed a bill incorporating the Boy Scouts of America.
1917 – Great Britain pledged the release of all the Irish captured during the Easter Rebellion of 1916.
1919 – Captain John Alcock and Lt. Arthur W. Brown won $50,000 for successfully completing the first, non-stop trans-Atlantic plane flight.
1938 – Johnny Vandemeer, of the Cincinnati Reds, pitched his second straight no-hitter.
1940 – The French fortress of Verdun was captured by Germans.
1944 – American forces began their successful invasion of Saipan during World War II.
1947 – The All-Indian Congress accepted a British plan for the partition of India.
1958 – Greece severed military ties to Turkey because of the Cypress issue.
1964 – The last French troops left Algeria.
1978 – King Hussein of Jordan married 26-year-old American Lisa Halaby, who became Queen Noor.
1981 – The U.S. agreed to provide Pakistan with $3 billion in military and economic aid from October 1982 to October 1987.
1982 – In the capital city of Stanley, the Falklands war ended as Argentine troops surrendered to the British.
1983 – The U.S. Supreme Court reinforced its position on abortion by striking down state and local restriction on abortions.
1986 – Pravda, the Communist Party newspaper, reported that the chief engineer of the Chernobyl nuclear plant was dismissed for mishandling the incident at the plant.
1989 – In Shanghai three Chinese workers were sentenced to death for setting fire to a train during a pro-democracy protest.
1992 – It was ruled by the U.S. Supreme Court that the government could kidnap criminal suspects from foreign countries for prosecution.
1992 – U.S. Vice President Dan Quayle instructed a student to spell "potato" with an "e" on the end during a spelling bee. He had relied on a faulty flash card that had been written by the student’s teacher.
1994 – Israel and the Vatican established full diplomatic relations.
1998 – The U.S. Supreme Court ruled that state prison inmates are protected by the Americans with Disabilities Act.
1999 – South Korean naval forces sank a North Korean torpedo boat during an exchange in the disputed Yellow Sea.
2003 – In northeast London, a trailer was stolen that contained thousands of copies of J.K. Rowling’s book "Harry Potter And The Order Of The Phoenix." The empty trailer was discovered two days later.
2006 – The U.S. Supreme Court said that judges cannot throw out evidence collected by police who have search warrants but do not properly announced their arrival.