On This Day: December 7

6 verified moments happened on December 7. Here they are in the order they actually happened — the same kind of puzzle you solve in Whensly every day.

1. 1676💡 Ole Romer publishes the first evidence that light travels at a finite speed, from timing Jupiter's moon Io.History · Source: Wikipedia, 'Romer's determination of the speed of light' (Dec 7 1676)
2. 17871️⃣ Delegates in Dover unanimously ratify the new Constitution, making this small state the first in the union to do so.USA 250 · Source: HISTORY.com, Delaware becomes the first state to ratify the Constitution (Dec 7 1787)
3. 1941Sammy Baugh and the Washington Redskins beat the Eagles as fans sit unaware of the Pearl Harbor attack unfoldingSports · Source: Pro Football Hall of Fame / Boundary Stones WETA 'Pearl Harbor at Griffith Stadium', Dec 7, 1941
4. 1941💣 Japan's carrier aircraft attack Pearl Harbor without warning, killing 2,403 Americans and bringing the United States into World War II.History · Source: HISTORY, 'Pearl Harbor'; National WWII Museum (Dec 7 1941)
5. 1941⚓ Japanese aircraft launch a surprise attack on the U.S. Pacific Fleet at Pearl Harbor, Hawaii, drawing America into the Second World War.USA 250 · Source: National WWII Museum, Pearl Harbor Attack (Dec 7 1941)
6. 2005NASCAR completes a $4.48 billion, eight-year television package splitting its schedule among Fox, TNT and the ESPN/ABC networksStock Car Racing · Source: TVWeek, “NASCAR Adds ESPN, ABC to Its TV Outlets,” Dec 7, 2005; International Speedway Corp. Form 8-K announcing the Dec 7, 2005 agreements