On this day in...

1413 – Henry V is crowned King of England.
1682 – Robert Cavelier de La Salle discovers the mouth of the Mississippi River, claims it for France and names it Louisiana.
1860 – The oldest audible sound recording of a human voice is recorded.
1865 – American Civil War: Robert E. Lee surrenders the Army of Northern Virginia (26,765 troops) to Ulysses S. Grant at Appomattox Courthouse, Virginia, effectively ending the war.
1867 – Alaska purchase: Passing by a single vote, the United States Senate ratifies a treaty with Russia for the purchase of Alaska.
1939 – Marian Anderson sings at the Lincoln Memorial, after being denied the right to sing at the Daughters of the American Revolution's Constitution Hall.
1940 – World War II: Germany invades Denmark and Norway.
1945 – The United States Atomic Energy Commission is formed.
1947 – The Journey of Reconciliation, the first interracial Freedom Ride begins through the upper South in violation of Jim Crow laws.
1959 – Mercury program: NASA announces the selection of the United States' first seven astronauts, whom the news media quickly dub the "Mercury Seven".
1965 – Astrodome opens. First indoor baseball game is played.
1967 – The first Boeing 737 (a 100 series) makes its maiden flight.
1968 – Martin Luther King funeral
1969 – The "Chicago Eight" plead not guilty to federal charges of conspiracy to incite a riot at the 1968 Democratic National Convention in Chicago, Illinois.
1992 – A U.S. Federal Court finds former Panamanian dictator Manuel Noriega guilty of drug and racketeering charges. He is sentenced to 30 years in prison.
2002 – The funeral of Queen Elizabeth, the Queen Mother at Westminster Abbey.
2003 – 2003 invasion of Iraq: Baghdad falls to American forces.
2005 – Charles, Prince of Wales marries Camilla Parker Bowles.

Births
1898 – Curly Lambeau, American football coach, executive (d. 1965)
1926 – Hugh Hefner, American entrepreneur and publisher
1945 – Peter Gammons, American sports journalist
1954 – Dennis Quaid, American actor
1963 – Joe Scarborough, American television personality
1965 – Jeff Zucker, American television executive
1966 – Cynthia Nixon, American actress
1974 – Jenna Jameson, American pornographic actress
1979 – Keshia Knight Pulliam, American actress
1979 – Jeff Reed, American football player
1987 – Jesse McCartney, American actor and singer

Pretty good list of birthdays today with the namesake of Lambeau Field, one of the best baseball writers ever, Cousin Eddie's brother, a conservative from MSNBC, a creepy red haired actress, a porn star, the most recognizable kicker in the NFL and Rudy from 'The Cosby Show.' But of course I'm going with Playboy founder Hugh Hefner. Here are a couple moments from his roast.