1648: The first execution for witchcraft in the Massachusetts Bay Colony occurs when Margaret Jones is hanged in Boston.
1667: Doctor Jean-Baptiste Denys gives the first human blood transfusion in history.
1670: The cornerstone of Fort Ricasoli in Malta is laid on this day.
1752: While the exact date is not known to historians, it’s traditionally observed that Benjamin Franklin proved that lightning was composed on electricity on this date.
1776: A vote in Delaware leads to it suspending its government under British Rule and officially separating from Pennsylvania. Which is why this day is known as Delaware Separation Day.
1804: The 12th Amendment to the U.S Constitution is approved by New Hampshire. This ratifies the document.
1836: Arkansas becomes the 25th State in the U.S.
1844: A patent for vulcanization is granted to Charles Goodyear on this day.
1846: The border between Canada and the U.S is established as the 49th parallel thanks to the Oregon Treaty.
1859: The Pig War begins when there is a dispute between American and Canadian settlers over the Northwestern boundary in the San Juan Islands. It was a bloodless conflict.
1864: The Second Battle of Petersburg occurs during the American Civil War.
1864: Arlington National Cemetery is founded when two hundred acres of land that was formerly owned by Confederate General Robert E. Lee was set aside for use as a military cemetery by then United States Secretary of State Edwin M. Stanton.
1877: When Henry Ossian Flipper graduates from the U.S Military Academy, he becomes the first African-American cadet to do so.
1878: In order to prove that all of a horse’s hooves leave the ground when it runs, Eadweard Muybridge takes a series of pictures.
Famous Birthdays on June 15
Russian actress Alla Kazankskaya is born in 1920.
American Jazz pianist and composer, Erroll Garner is born in 1921.
English author and journalist, Richard Baker is born in 1925.
American actress and director, Helen Hunt is born in 1963.
American actress and producer, Courteney Cox is born in 1964.
American rapper, actor and producer, Ice Cube is born in 1969.
American actress and producer, Leah Remini is born in 1970.