Many public-school children seem to know only two dates—1492 and 4th of July; and as a rule they don't know what happened on either occasion.
Mark Twain (2016). “The Wit and Wisdom of Mark Twain”, p.46, Chartwell

Many public-school children seem to know only two dates—1492 and 4th of July; and as a rule they don't know what happened on either occasion.