An anonymous diary kept in Hamburg from August 1755 to August 1756 records sleep, food, exercise and weather every day, with times recorded to the nearest quarter hour. Researchers suggest the diarist was an English merchant named Anthony Simpson, who went bankrupt during this period after losses from emigrant shipping and family deaths. The diary follows an approach from ancient medicine that advised patients to track the six non-natural things, including air, activity, sleep and states of mind. Because the timings are so precise, a statistician and a sleep researcher were able to analyse the sleep patterns as a time series.

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.