I recently had a birthday. Can you guess how long ago I was born? Here are some words that were first recorded that year by Merriam-Webster. Some of the words surprised me.

aerospace
big bang theory
counterintuitive
exurbia
fabric softener
gangbusters
hidden agenda
intensive care unit
jazzed
kegger
liner notes
mind-boggling
New Left
off-gas
pinball
red panda
sheesh
technophile
underemphasize
veggie
weirdo
zinger

Find out which year and see more of its surprising words at Merriam-Webster.com Time Traveler.