“Originally, ‘blizzard’ involved no snow, wind chill, or wintry conditions at all. The Oxford English Dictionary records it as an early 18th century word for a sharp, violent blow, first found in 1829.”Linnea writes: "Oops! The 18th century and the 1800s do not refer to the same era, Mark! He should have written 'an early 19th century word,' as the OED actually states."
True enough. It's an easy mistake to make. We hereby resolve to be more careful.