On April 9.1945 ; The United States Atomic Energy Commission is formed. source
On April 9.1945 ; The United States Atomic Energy Commission is formed.
On April 10.1816 ; The Federal government of the United States approves the creation of the Second Bank of the United States. source
On April 10.1816 ; The Federal government of the United States approves the creation of the Second Bank of the United States.
On April 12.1934 ; The strongest surface wind gust in the world at the time of 231 mph, is measured on the summit of Mount Washington, New Hampshire. It has since been surpassed. source
On April 12.1934 ; The strongest surface wind gust in the world at the time of 231 mph, is measured on the summit of Mount Washington, New Hampshire. It has since been surpassed.
On April 12.1999 ; Then-US President Bill Clinton is cited for contempt of court for giving "intentionally false statements" in a civil lawsuit; he is later disbarred and fined. source
On April 12.1999 ; Then-US President Bill Clinton is cited for contempt of court for giving "intentionally false statements" in a civil lawsuit; he is later disbarred and fined.
On April 13. 1960 ; The United States launches Transit 1-B, the world's first satellite navigation system. source
On April 13. 1960 ; The United States launches Transit 1-B, the world's first satellite navigation system.
On April 13. 1976 ; The United States Treasury Department reintroduces the two-dollar bill as a Federal Reserve Note on Thomas Jefferson's 233rd birthday as part of the United States Bicentennial celebration. source
On April 13. 1976 ; The United States Treasury Department reintroduces the two-dollar bill as a Federal Reserve Note on Thomas Jefferson's 233rd birthday as part of the United States Bicentennial celebration.
On April 13.1992 ; The Great Chicago flood devastates much of central Chicago. source
On April 13.1992 ; The Great Chicago flood devastates much of central Chicago.
On April 14.1865 ; U.S. Secretary of State William H. Seward and his family are attacked at home by Lewis Powell. source
On April 14.1865 ; U.S. Secretary of State William H. Seward and his family are attacked at home by Lewis Powell.
On April 14.1881 ;The Four Dead in Five Seconds Gunfight is fought in El Paso, Texas. source
On April 14.1881 ;The Four Dead in Five Seconds Gunfight is fought in El Paso, Texas.
On April 15.1986 ; The United States launches Operation El Dorado Canyon, its bombing raids against Libyan targets in response to a bombing in West Germany that killed two U.S. servicemen. source
On April 15.1986 ; The United States launches Operation El Dorado Canyon, its bombing raids against Libyan targets in response to a bombing in West Germany that killed two U.S. servicemen.
On April 16.1818 ;The United States Senate ratifies the Rush–Bagot Treaty, establishing the border with Canada. source
On April 16.1818 ;The United States Senate ratifies the Rush–Bagot Treaty, establishing the border with Canada.
On April 16.1947 ; Texas City disaster: An explosion on board a freighter in port causes the city of Texas City, Texas, to catch fire, killing almost 600. source
On April 16.1947 ; Texas City disaster: An explosion on board a freighter in port causes the city of Texas City, Texas, to catch fire, killing almost 600.
On April 18.1936 ; The first Champions Day is celebrated in Detroit, Michigan. source
On April 18.1936 ; The first Champions Day is celebrated in Detroit, Michigan.
On April 19.1892 ; Charles Duryea claims to have driven the first automobile in the United States, in Springfield, Massachusetts. source
On April 19.1892 ; Charles Duryea claims to have driven the first automobile in the United States, in Springfield, Massachusetts.
On April 19.1993 ; The 51-day FBI siege of the Branch Davidian building outside Waco, Texas, USA, ends when a fire breaks out. Eighty-one people die. source
On April 19.1993 ; The 51-day FBI siege of the Branch Davidian building outside Waco, Texas, USA, ends when a fire breaks out. Eighty-one people die.
On April 20.1836 ; U.S. Congress passes an act creating the Wisconsin Territory. source
On April 20.1836 ; U.S. Congress passes an act creating the Wisconsin Territory.
On April 20.1912 ; Opening day for baseball's Tiger Stadium in Detroit, and Fenway Park in Boston. source
On April 20.1912 ; Opening day for baseball's Tiger Stadium in Detroit, and Fenway Park in Boston.
On April 21.1898 ; Spanish–American War: The United States Navy begins a blockade of Cuban ports. When the U.S. Congress issued a declaration of war on April 25, it declared that a state of war had existed from this date. source
On April 21.1898 ; Spanish–American War: The United States Navy begins a blockade of Cuban ports. When the U.S. Congress issued a declaration of war on April 25, it declared that a state of war had existed from this date.
On April 21.1914 ; Ypiranga incident: A German arms shipment to Mexico is intercepted by the U.S. Navy near Veracruz. source
On April 21.1914 ; Ypiranga incident: A German arms shipment to Mexico is intercepted by the U.S. Navy near Veracruz.
On April 22.1864 ; The U.S. Congress passes the Coinage Act of 1864 that mandates that the inscription In God We Trust be placed on all coins minted as United States currency. source
On April 22.1864 ; The U.S. Congress passes the Coinage Act of 1864 that mandates that the inscription In God We Trust be placed on all coins minted as United States currency.
On April 22.1930 ; The United Kingdom, Japan and the United States sign the London Naval Treaty regulating submarine warfare and limiting shipbuilding. source
On April 22.1930 ; The United Kingdom, Japan and the United States sign the London Naval Treaty regulating submarine warfare and limiting shipbuilding.
On April 22.1944 ;The 1st Air Commando Group using Sikorsky R-4 helicopters stage the first use of helicopters in combat with combat search and rescue operations in the China Burma India Theater. source
On April 22.1944 ;The 1st Air Commando Group using Sikorsky R-4 helicopters stage the first use of helicopters in combat with combat search and rescue operations in the China Burma India Theater.
On April 22.2008 ; The United States Air Force retires the remaining F-117 Nighthawk aircraft in service. source
On April 22.2008 ; The United States Air Force retires the remaining F-117 Nighthawk aircraft in service.
On April 24.1895 ; Joshua Slocum, the first person to sail single-handedly around the world, sets sail from Boston, Massachusetts aboard the sloop "Spray". source
On April 24.1895 ; Joshua Slocum, the first person to sail single-handedly around the world, sets sail from Boston, Massachusetts aboard the sloop "Spray".
On April 24.1913 ; The Woolworth Building skyscraper in New York City is opened. source
On April 24.1913 ; The Woolworth Building skyscraper in New York City is opened.
On April 24.2004 ; The United States lifts economic sanctions imposed on Libya 18 years previously, as a reward for its cooperation in eliminating weapons of mass destruction. source
On April 24.2004 ; The United States lifts economic sanctions imposed on Libya 18 years previously, as a reward for its cooperation in eliminating weapons of mass destruction.
On April 26.1805 ; First Barbary War: United States Marines captured Derne under the command of First Lieutenant Presley O'Bannon. source
On April 26.1805 ; First Barbary War: United States Marines captured Derne under the command of First Lieutenant Presley O'Bannon.
On April 27.1865 ; The steamboat Sultana, carrying 2,400 passengers, explodes and sinks in the Mississippi River, killing 1,800, most of whom are Union survivors of the Andersonville and Cahaba Prisons. source
On April 27.1865 ; The steamboat Sultana, carrying 2,400 passengers, explodes and sinks in the Mississippi River, killing 1,800, most of whom are Union survivors of the Andersonville and Cahaba Prisons.
On April 27.1936 ; The United Auto Workers (UAW) gains autonomy from the American Federation of Labor. source
On April 27.1936 ; The United Auto Workers (UAW) gains autonomy from the American Federation of Labor.
On April 28.1788 ; Maryland becomes the seventh state to ratify the United States Constitution. source
On April 28.1788 ; Maryland becomes the seventh state to ratify the United States Constitution.