Which president’s nickname is said to have popularized the word “OK?”

a) John Quincy Adams

b) Martin Van Buren

c) Andrew Johnson

d) Chester Alan Arthur

Answer: b) Although the exact origin of the use of “OK” as shorthand for “all correct” is uncertain, the 1837-41 presidency of Democrat Martin Van Buren helped implant the term in the American vernacular. His nickname, based on his Dutch-founded hometown in New York’s Hudson Valley, was “Old Kinderhook” — or “O.K.” for short.