Also a good way to check you’re not committing anachronism.

Originally shared by Joanne Manaster

How old were you when CRISPR got added to the dictionary? And what were your grandparents doing when DNA made its first appearance?

Now you can find out. Merriam-Webster has been promoting a search tool that lets you look up the words that got added to dictionary in the year you were born, or any other year dating all the way back to 1500. (Incidentally, the word illness got added that year.)