Dow Jones & Company publishes its first stock average.
1 July 1770
Lexell’s Comet is seen closer to the Earth than any other comet in recorded history, approaching to a distance of 0.0146 astronomical units (2,180,000 km;…
30 June 1860
The 1860 Oxford evolution debate at the Oxford University Museum of Natural History takes place.
25 June 2017
The World Health Organization estimates that Yemen has over 200,000 cases of cholera.