A framed 21-by-40-inch map that reveals a plan of the city in 1790 was discovered in a family home in Almonte, Ontario, after the owner contacted historians to check its validity. […]
Historians concluded that the rare, previously unknown hand-drawn, hand-colored map, titled “Rough sketch of the King’s Domain at Detroit,” was indeed an original—drawn on high-quality, watermarked 18th-century paper, and signed by its author, D. W. Smith (Captain David William Smith), dated September 1790.
— NWS Detroit (@NWSDetroit) June 19, 2016
When mayflies “hatch”—that is to say, moult into their final, adult “imago” form—they emerge in truly enormous numbers. Numerous enough to turn up on the National Weather Service’s radar earlier this month. [CBC News]