April 13th is known as Thomas Jefferson Day as well as Scrabble Day.
Iran launched a drone and missile strike on Israel following an Israeli attack on its Damascus embassy.
The FBI arrested US Air National Guardsman Jack Teixeria for leaking classified documents.
Simpsons voice actor Hank Azaria apologized for voicing Apu for 30 years.
The world's largest plane, The Stratolaunch, had its first flight from the Mojave Desert in California.
Manny Pacquiao reclaimed WBO welterweight boxing title after defeating Timothy Bradley.
Star Trek actor George Takei had an asteroid named after him.
Nelson Mandela and Winnie Madikizela revealed their separation.
The world record for the longest table tennis doubles marathon was broken with a time of 101 hours.
The world's first satellite navigation system, Transit 1-B, was successfully launched from the US.
The director of the CIA launched Project MKUltra, the US' top secret mind control program.
US President Franklin D. Roosevelt dedicated the Jefferson Memorial to Thomas Jefferson.
The Metropolitan Museum of Art in New York City was founded.
George Westinghouse Jr. patented steam power brake devices in the US.
The United States received its first elephant.
John Dryden was appointed as England's first Poet Laureate by King Charles II.
The Ottoman forces took over Cairo, Egypt.
Pope Paschal II crowned Henry V as the Holy Roman Emperor.
