Three-in-a-row games were played on roofing tiles in ancient Egypt around 1300 BC. In the Roman Empire, a version called terni lapilli gave each player only three pieces, so they had to slide them into empty spaces to keep playing, and its grid has been found chalked across Rome. The English name noughts and crosses appeared in print in 1858, while the American tic-tac-toe became common in the 20th century. In 1952 the British computer scientist Sandy Douglas wrote OXO for the EDSAC computer at Cambridge, one of the first known video games, and it could play perfect games against a human. In 1975 MIT students built a computer out of Tinkertoy parts that played the game perfectly.

Israeli reports also say the cabinet directed the military to prepare for a possible new attack on Iran.

Angkor, near Siem Reap in northern Cambodia, was the capital of the Khmer Empire, which ruled much of mainland Southeast Asia between roughly the 9th and 15th centuries. At its height the city spread across about 3,000 square kilometres, making it the largest pre-industrial city on Earth by area. Its growth depended on water: huge reservoirs called barays, along with canals and embankments, stored monsoon rain and carried it to rice fields. That system let farmers harvest more than once a year and fed a very large population through the dry season. The temple complex of Angkor Wat, built in the early 12th century, is the best-known monument and still stands at the heart of the park.