On This Day: September 1

6 verified moments happened on September 1. Here they are in the order they actually happened — the same kind of puzzle you solve in Whensly every day.

1. 1939💣 German forces invade Poland at dawn, an act that prompts Britain and France to declare war and marks the start of the Second World War.USA 250 · Source: HISTORY.com / National WWII Museum, Germany invades Poland (Sept 1 1939)
2. 1969LeeRoy Yarbrough wins the Southern 500 at Darlington to become the first driver to sweep NASCAR's Triple Crown — Daytona 500, World 600, and Southern 500 — in a single season.Stock Car Racing · Source: Wikipedia, 'LeeRoy Yarbrough'; 1969 Southern 500 (Sep 1, 1969) — first NASCAR Triple Crown
3. 1972Bobby Fischer becomes World Chess Champion as Boris Spassky resigns the final gameSports · Source: Wikipedia 'World Chess Championship 1972' (Game 21 adjourned Aug 31, Spassky resigned by phone Sept 1, 1972); History.com 'Bobby Fischer becomes the first American to win the World Chess Championship, September 1, 1972'
4. 1985“Million Dollar Bill” Elliott wins the first Winston Million at Darlington's Southern 500Stock Car Racing · Source: Wikipedia, “1985 Southern 500”; NBC Sports
5. 1985🌊 Robert Ballard's team locates the Titanic wreck decades after the sinking, at a depth of 12,415 feet in the North Atlantic.History · Source: Woods Hole Oceanographic Institution; Wikipedia, 'RMS Titanic' (Sep 1 1985)
6. 2021🇵🇹 Cristiano Ronaldo heads two late goals against Ireland, breaking Ali Daei's men's international scoring record for Portugal.Soccer · Source: Guinness World Records; Euronews (Sep 1 2021)