Thanksgiving isn't exactly a mysterious holiday. Pilgrims, Plymouth, and sharing food. We know. But there's a few facts about Turkey Day you might not know.

Check out my favorite Thanksgiving fun facts from Business Insider's list below.

1.) The first Macy's Thanksgiving Day Parade had live animals.

When Macy's made their first big New York parade in 1914, they did things a little different than they do now. For example, they had real Snoopy's, not just a giant balloon.

Well, maybe not, but they did use monkeys, bears, camels, and elephants from the Central Park Zoo.

Macy's employees dressed in bright costumes along with floats, not balloons, for the Macy's Christmas Parade.

Oh ya, and they didn't name it the Macy's Thanksgiving Day Parade until 1927.

2.) Jingle Bells was made for Thanksgiving.

Apparently the two holidays did a lot of trading back in the day.

The classic Christmas song "Jingle Bells" was originally "One Horse Open Sleigh" by James Pierpoint in 1857.

Everyone loved the song so much that they would sing it for Christmas too, and eventually just became exclusively associated with the December holiday.

3.) Thomas Jefferson was a Thanksgivings Grinch

In the beginning, Thanksgiving needed to be re-declared a holiday each year by the president, starting with George Washington.

When Thomas Jefferson became the third president, he tried to kill Thanksgiving forever! He refused to re-declare the holiday during his presidency, saying it was "the most ridiculous idea ever conceived."

He was probably so against the holiday because of his belief in separation of church and state, and the day of 'prayer' went against the First Amendment.

Honest Abe Lincoln finally made Turkey Day an official federal holiday in 1863, protecting our right to over-eat every year.

4.) FDR changed Thanksgivings' date for two years.

Presidents loved to mess with this day for some reason.

Franklin Delano Roosevelt changed Thanksgiving's date in 1939 from the last Thursday of November to the third Thursday of the month.

Why? To give everyone more time to shop for Christmas of course!

Because the Great Depression effected the economy so... well, greatly... FDR tried to give the USA a boost in the wallet by giving everyone an extra week to shop and spend money.

Unfortunately, the change confused just about everyone. Only a few states actually celebrated on the third Thursday, and a few celebrated on both weeks.

The holiday became so disorganized, people started calling it "Franksgiving," so Congress officially made the fourth Thursday of November the day after two years of Franksgiving turkeys, which aren't as good.

5.) It's Presidential Thanksgiving tradition to pardon a turkey, for some reason.

A pardon from the President is no joke. It saved Richard Nixon a lot of trouble, why can't other people and things benefit?

Each year, one lucky turkey is pardoned by the President of the United States. The turkey is free to live it's life to the fullest, without fear of being eaten on Thanksgiving.

Where the tradition began, nobody really knows. Some think it was Harry Truman in 1947, and some think it began with Abraham Lincoln when his son begged him to spare their pet turkey from becoming Thanksgiving dinner.

But, we can thank George H. W. Bush for giving turkeys an official presidential pardon on Thanksgiving.

Now you can appreciate this awesome holiday a little more knowing these fun facts. Have an awesome Thanksgiving, and besides the food and Adam Sandler's music, enjoy the company of your family and friends!

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