History of April Fools' Day

It's no wonder that April is National Humor Month with a kick-off holiday like April Fools' Day on the 1st.

While many know this jokester's "free pass" as a day of pulling pranks on friends and loved ones, its origin was more of a jest at those who weren't quite up with the times.

Read on to find out how April Fools' Day came to be and some of the infamous hoaxes pulled off by tricksters operating under the "diplomatic immunity" of this spring holiday.