For more than 60 years, Pizza Hut has been slinging hot, cheesy pies to hungry consumers all over the world. (There are more than 16,000 locations worldwide.) Whether you're a meat lover or vegetarian, here are 15 things you should know about the popular pizza chain.

1. It was founded by two brothers who were still in college.

Dan and Frank Carney borrowed $600 from their mother in 1958 to open a pizza place while attending Wichita State University. The name was inspired by the former bar that they rented to open their first location.

2. Pizza Hut franchising was almost instant.

A year after the first location opened in Wichita, Kansas, the Carney brothers had already incorporated the business and asked their friend Dick Hassur to open the first franchise location in Topeka, Kansas. Hassur, who had previously gone to school and worked at Boeing with Dan Carney, was looking for a way out of his insurance agent job. He soon became a multi-franchise owner, and worked to find other managers who could open Pizza Huts across the country.

Once, when a successful manager of a Wichita location put in his notice, Hassur was sent in to convince the man to stay. That manager happened to be Bill Parcells, who had resigned his Pizza Hut job in order to take his first coaching job at a small Nebraska college. Of course, he later went on to coach numerous NFL teams, including leading the New York Giants to two Super Bowl victories. "I might have been wrong there," Hassur said of trying to convince Parcells his salary would be better as a manager than as a coach, "but I'm sure he'd have been successful with Pizza Hut, too."

3. There was a mascot in the early days.

Before the iconic red roof logo was adopted in 1969, Pizza Hut had a mascot named Pizza Pete who also served as its logo. The mustachioed cartoon man wore a chef’s hat, neckerchief, and an apron while serving up hot meals to hungry customers. Pizza Pete was still used throughout the 1970s on bags, cups, and advertisements, but was eventually phased out.

4. Pizza Hut perfume was a thing that existed.

It was announced late in 2012 that Pizza Hut had plans to release a limited edition perfume that smelled like "fresh dough with a bit of spice." One hundred fans of the Pizza Hut Canada Facebook page won bottles of the scent, and another promotion around Valentine's Day gave American pizza lovers a chance to own the fragrance via a Twitter contest. The packaging for the perfume resembled mini pizza boxes, and a few later surfaced on eBay for as much as $495.

5. They struck gold with the Teenage Mutant Ninja Turtles.

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When a group of crime fighting turtles that love pizza become huge pop culture icons, it's a no-brainer that a pizza company should do business with them. Domino's was featured in the first Teenage Mutant Ninja Turtles film in 1990, but ads for Pizza Hut were included on VHS when the film hit home video. Pizza Hut also reportedly spent around $20 million on marketing campaigns for the Turtles during the 1990 "Coming Out of Their Shells" concert tour and album release. The partnership continued all the way up to the 2014 release of Michael Bay's Teenage Mutant Ninja Turtles.

6. Pizza Hut Easy-Bake ovens were also real.

Children of the '70s were lucky enough to own small toy ovens shaped like the restaurant in which they could bake tiny little Pizza Hut pizzas under a 60-watt light bulb.

7. Their vintage commercials are star-studded.

An 11-year-old Elijah Wood got his start flinging potato salad at his co-star; Ringo Starr and the Monkees marveled at the stuffed-crust pizza; and former Soviet statesman Mikhail Gorbachev had a very odd, political pizza pitch, appearing along with his young granddaughter in a Russian Pizza Hut (though the ad was not set to run in Russia).

8. The Book It! program is 35 years old.

In 1984, Pizza Hut kicked off the BOOK IT! program, an initiative to encourage children to read by rewarding them with "praise, recognition and pizza." It was such a success that First Lady Barbara Bush threw a reading-themed pizza party at the White House in 1989. The program is now the "longest-running corporate-supported reading program in the country" and has reached over 60 million children.

9. They were early to the pan pizza create.

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Pizza Hut introduced pan pizza in 1980, nine years before their competition, Domino's, added the style to their menu. In 1983, they introduced personal pan pizzas, which are still the coveted prize of the BOOK IT! program and the only pizza option at smaller Pizza Hut cafes (like those inside Target stores).

10. They were also early to online ordering.

In 1994, Pizza Hut and The Santa Cruz Operation created PizzaNet, an ahead-of-its-time program that allowed computer users to place orders via the internet. The Los Angeles Times called the idea "clever but only half-baked" and "the Geek Chic way to nosh." And, the site is still up and running! Seriously, go ahead and try to order.

11. Pizza Hut pizza has been to space ...

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In 2001, Pizza Hut became the first company to deliver pies into space. Before being sealed and sent to the International Space Station, the pizza recipe had to undergo "rigorous stabilized thermal conditions" to make sure that it would be still be edible when it got there. Pizza Hut also paid a large, unspecified sum (but definitely more than $1 million) to have a 30-foot-wide ad on a rocket in 1999.

12. … but not to the Moon.

In 1999, Pizza Hut's then-CEO Mike Rawlings (and current Mayor of Dallas) told The New York Times that an earlier idea for space marketing was for the logo to be shown on the moon with lasers. But once they started looking into it, astronomers and physicists advised them that the projected image would have to be as large as Texas to be seen from Earth—and the project would also have cost the company hundreds of millions of dollars. Better to stick with Super Bowl ads.

13. They once offered pizza engagement packages.

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What's the perfect way to pop the big question? In 2012, Pizza Hut suggested that grooms- (or brides-) to-be order the engagement party package that included a $10 dinner box, a limo, a ruby ring, fireworks, flowers, and a photographer, all for $10,010. In keeping with the theme, only 10 of the packages were offered. But, to be clear—if you bought a Pizza Hut engagement package, you would have spent $10 on food and approximately the cost of a wedding on the proposal.

14. Pizza Hut accounts for three percent of U.S. cheese production.

With all those locations and cheese-stuffed crusts, Pizza Hut needs a lot of dairy. The company uses over 300 million pounds of cheese annually and is one of the largest cheese buyers in the world. To make that much cheese, 170,000 cows are used to produce an estimated 300 billion gallons of milk. Something to think about the next time you order an Ultimate Cheese Lover's pizza with extra cheese.

15. There are a lot of repurposed Pizza Hut locations.

Franchise locations of companies are not always successful, and when they close, the buildings are often left untouched by their new owners rather than being demolished and replaced. Because the hut-shaped stores have become synonymous with the company, their former locations are easy to spot. The blog "Used to Be a Pizza Hut" has an interactive map of more than 500 ex-huts submitted by people all over the world. There is also a successful Kickstarter-funded photo book—called Pizza Hunt—documenting the "second lives" of the restaurants.