On This Day: June 23rd

Twelve boys and an assistant coach from a soccer team in Thailand are trapped in a flooding cave, leading to an 18-day rescue operation.

A series of terrorist attacks take place in Pakistan, resulting in 96 deaths and wounding 200 others.

Brexit: The United Kingdom votes in a referendum to leave the European Union, by 52% to 48%.

The last of Syria's declared chemical weapons are shipped out for destruction.

Nik Wallenda becomes the first man to successfully walk across the Grand Canyon on a tight rope.

Militants storm a high-altitude mountaineering base camp near Nanga Parbat in Gilgit–Baltistan, Pakistan, killing ten climbers and a local guide.

Ashton Eaton breaks the decathlon world record at the United States Olympic Trials.

American social news and discussion site Reddit is founded in Medford, Massachusetts by Steve Huffman and Alexis Ohanian.

The 8.4 Mw southern Peru earthquake shakes coastal Peru with a maximum Mercalli intensity of VIII (Severe). A destructive tsunami followed, leaving at least 74 people dead, and 2,687 injured.

NASA's Space Station Processing Facility, a new state-of-the-art manufacturing building for the International Space Station, officially opens at Kennedy Space Center.