On this day, June 7 ...

1981: President Ronald Reagan announces he is nominating Arizona Judge Sandra Day O'Connor to become the first female justice on the U.S. Supreme Court.

Also on this day:

1865: Four people are hanged in Washington, D.C. for conspiring with John Wilkes Booth to assassinate President Abraham Lincoln: Lewis Powell (aka Lewis Payne), David Herold, George Atzerodt and Mary Surratt, the first woman to be executed by the federal government.

Four people are hanged in Washington, D.C. for conspiring with John Wilkes Booth to assassinate President Abraham Lincoln: Lewis Powell (aka Lewis Payne), David Herold, George Atzerodt and Mary Surratt, the first woman to be executed by the federal government. 1948: Six female U.S. Navy reservists become the first women to be sworn in to the regular Navy.

Six female U.S. Navy reservists become the first women to be sworn in to the regular Navy. 1954: Elvis Presley makes his radio debut as Memphis, Tenn., station WHBQ plays his first recording for Sun Records, "That's All Right."

Elvis Presley makes his radio debut as Memphis, Tenn., station WHBQ plays his first recording for Sun Records, "That's All Right." 1975: The daytime drama "Ryan's Hope" premieres on ABC-TV.

The daytime drama "Ryan's Hope" premieres on ABC-TV. 1976: The United States Military Academy at West Point includes female cadets for the first time as 119 women join the Class of 1980.

1990: The first "Three Tenors" concert takes place as opera stars Luciano Pavarotti, Placido Domingo and Jose Carreras perform amid the brick ruins of Rome's Baths of Caracalla on the eve of the World Cup championship.

2004: Former Enron chairman Kenneth Lay is indicted on criminal charges related to the energy company's collapse. (Lay would be convicted of fraud and conspiracy, but die in July 2006 before he could be sentenced.)

2014 : Washington state issues its first retail marijuana licenses

: Washington state issues its first retail marijuana licenses 2018: After two days of talks in North Korea's capital, Secretary of State Mike Pompeo says he has commitments for new discussions on denuclearization. However, North Korea says Pompeo's visit has been "regrettable" and that the United States is making "gangster-like" demands.