This Day in History: June 23

930 The Icelandic Parliament is established

The Alþingi, also known as Althing or Althingi, is the world's oldest parliament. It was established in Iceland and is still in operation today.

1868 The Sholes and Glidden typewriter is patented

Christopher Latham Sholes patents the Sholes and Glidden typewriter, which became the first commercially successful of its kind.

1894 The International Olympic Committee is founded

The IOC is established at the initiative of French educator Pierre de Coubertin. It is responsible for organizing the Olympic Games and similar events.

1931 Wiley Post and Harold Gatty start their record-breaking flight around the world

American aviator Wiley Post and Australian navigator Harold Gatty begin their journey to circumnavigate the planet in a single-engine plane. They complete the trip in eight days, setting a new record.

1960 The first contraceptive pill is made available for purchase in the U.S.

The first oral contraceptive, commonly known as "the pill," is approved by the FDA and becomes available for purchase in the United States.

1961 The Antarctic Treaty comes into force

The Antarctic Treaty is signed during the Cold War, designating Antarctica as a scientific preserve and prohibiting military activities on the continent.

1972 Hurricane Agnes becomes America's costliest natural disaster

Hurricane Agnes affects 15 states, causing 119 deaths and $3 billion in damage, making it the costliest natural disaster in the history of the United States at that time.

1974 The first extraterrestrial message is sent from Earth into space

The Arecibo message, a binary-coded message sent from the Arecibo radio telescope in Puerto Rico, is the first intentional attempt to communicate with extraterrestrial life.

1979 Supertramp's "Breakfast in America" becomes No. 1 album in the US

The album "Breakfast in America" by British rock band Supertramp reaches the number one spot on the US Billboard 200 chart. It features hit songs such as "Take the Long Way Home" and "The Logical Song."

1992 Yitzhak Rabin's Labor Party wins the election in Israel

Yitzhak Rabin becomes the country's fifth Prime Minister, and for his efforts towards peace in the Middle East, he is awarded the Nobel Peace Prize in 1994. However, a year later, Rabin is assassinated by a Jewish extremist.

2016 Brexit referendum: United Kingdom votes to leave the European Union

Just over half of the electorate voted for "Brexit," Britain's exit from the EU. The UK had been part of the union since 1973.