March is often widely known as Women's History Month [VIDEO], with International Women's Day held every March 8. But what most don't know is that March 6 is actually National Oreo Day. According to Thrillist, National Oreo Day falls on the 106th birthday of the creme-stuffed cookie and the company is also giving away over one million Oreo Chocolate Candy Bars. For those who are interested, log on to the OreoBirthdayGiveaway website.

The first Oreo biscuit was developed back in 1912 by the National Biscuit Company, which today is known as Nabisco.

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The beginnings of Oreos were in a Manhattan factory, and this block is now known as "Oreo Way." In celebration of the famous cookie's 106th birthday, we're counting down the 10 Oreo flavors you probably didn't know existed.

After all, there's much history to be explored in over 100 years of the stuffed biscuit. Let's check out what other flavors they've come up with over the years.

1. Watermelon

Watermelon Oreos were introduced sometime in 2013 and based on food reviews, received a lot of polarizing feedback. It's a Limited Edition flavor, which thankfully means consumers didn't have to deal with it for too long. The Watermelon Oreo looked nothing like the original, as it had a vanilla Golden Oreo wafer and green-and-pink cream inside.

2. Chocolate Birthday Cake

This is one of the few successes in Oreo's venture to develop new flavors, as it actually received a lot of positive reviews on the Walmart product page. Oddly enough, the negative reviews were on the Amazon product page.

3. Cookie Dough

It makes sense for Oreo to go down the cookie dough route, given that it's common ice cream flavor.

According to Huffington Post, however, these "taste nothing like cookie dough and are thus a serious letdown," and "taste more like coffee and caramel."

4. Marshmallow Cripsy

This flavor received generally positive reviews on Amazon, where users called it one of the best flavors ever made, featuring small rice krispies for an extra crunch.

5. Lemon

Introduced sometime in 2014, Lemon Oreos, were vanilla Oreos with a lemon cream filling, which were somehow positively reviewed by consumers.

6. Banana Split

Also introduced in 2013, this peculiar flavor mashed up regular chocolate biscuit and golden biscuit with a strawberry and banana cream filling.

7. Cinnamon Bun

Introduced in 2016, Cinnamon Bun Oreos were warmly received by people over at Buzzfeed, describing it as tasting "like Teddy Grahams dipped in that Dunkaroo cream."

8. Red Velvet

Red Velvet Oreos were revealed in early 2015 just in time for Valentines' Day and featured a red cookie with cream cheese flavored cream filling.

9. S'mores

Released in May 2015, Oreos took America's favorite dessert and mashed it up with the biscuit to create an unforgettable summer flavor.

10. Tiramisu

These delightful Oreo Thins are flavored just right, making it a favorite among Oreo lovers.