9 facts about Wendy's that might surprise you

Before opening his own franchise, Dave Thomas worked as a head cook at a Hobby House restaurant, the line of restaurants that would eventually become Kentucky Fried Chicken.

During his time working for the company, Thomas helped improve brand recognition and encouraged Colonel Harland David Sanders to appear in more commercials. This strategy, along with designing the iconic red-and-white-striped fried chicken bucket, grew KFC's popularity.

Thomas was sent to Columbus, Ohio, to revitalize a few failing KFC franchises, and turned them around and was able to sell them back to Sanders for a big profit, the Greensboro News & Record reported. He used this newfound cash to start his own franchise: a hamburger chain named Wendy's, inspired by the fact that he was unable to find a good burger during his years in Columbus. 

The first Wendy's restaurant opened at 257 East Broad Street on November 15, 1969. By that time, there were already two major players in the fast-food burger industry: McDonald's, which opened its first franchise in 1955, and Burger King, which was founded in 1954. The chain still stands as the third-largest fast-food burger chain in the US.

Wendy's was different from the other two chains in that it served square-shaped burger patties and chocolate shakes called "Frostys."

Apart from the burgers and Frostys, there were only three other items on the first menu: french fries, soft drinks, and chili.

Melinda "Wendy" Thomas was just 8 years old when her father founded Wendy's, and he already had a vision for how she would become the brand's mascot.

Inspired by the success Sanders experienced as the face of KFC, Thomas decided he would create a similar image for his brand. 

"He wanted a character, because he worked for the Colonel at Kentucky Fried Chicken and knew how much that persona mattered," Wendy Thomas wrote in a blog post for the company in 2019. "He said, 'Wendy, pull your hair up in pigtails.' So, I did. He got his camera and took pictures of me and my sister and said, 'Yep, it's going to be Wendy's Old-Fashioned Hamburgers.'"

"That was it," Thomas continued. "There was no marketing research, no nothing. Just boom. That's it."

One photo of Thomas wearing a blue-and-white-striped dress with her red hair in pigtails became the ultimate inspiration for the chain's logo. While the logo has been altered slightly over the years, the overall idea has remained the same.

Salad bars were added to restaurants in November 1979, and they were popular among customers throughout the 1980s. However, as more diners opted for drive-thru and carry-out service, salad bars were phased out in favor of more portable salad options. 

Wendy's chocolate Frosty is arguably one of the chain's most famous and popular menu items. Introduced as one of five menu items when the chain first opened in 1969, Frostys were only available in chocolate until 2006. That all changed when the chain launched its vanilla Frosty.

According to a Wendy's press release, the chain serves about 300 million Frostys every year.

While other chains have laid claims to inventing the drive-thru, Wendy's says it changed the fast-food industry when it introduced its own pick-up window in November 1970.

The window was originally referred to as a "drive-in window," but was changed to "Pick-Up Window" to better reflect the chain's quick service. 

According to Wendy's, "This innovation was so revolutionary that customers needed instructions on how to talk through the speaker to place an order."

According to the company's website, in 1977, Wendy's became the first fast-food chain with under 1,000 restaurants to air a national commercial. Wendy's now has more than 6,500 restaurants nationwide.

One Wendy's advertisement from September 1976, presumably a local commercial, featured an animated Wendy and dancing hamburgers. In the commercial, the cartoon characters described how Wendy's "old-fashioned" hamburgers were cooked to order: "Your choice down at Wendy's, where quality is our recipe!" 

Peller became one of the biggest names in fast food after she began starring in Wendy's commercials, shouting out the slogan, "Where's the beef?" The first advertisement, which came out in 1984, claimed that Wendy's hamburgers had bigger patties than the chain's competitors did.

The campaign was so popular that it led to a 31% boost in Wendy's annual revenue, according to the chain. However, things took a turn in 1985 after Peller appeared in a Prego commercial that implied she had "finally found" the beef she was looking for. 

"I'm sorry that the company that I worked so hard for does not want to use me in commercials anymore," Peller said in a statement through her attorney, according to UPI in 2006. 

"The commercial infers that Clara found the beef at somewhere other than Wendy's restaurants," William M. Welter, executive vice president of Wendy's International Inc., said in a statement. "Unfortunately, Clara's appearance in the ads makes it extremely difficult for her to serve as a credible spokesperson for our products."

Peller died at age 86 in 1987, just two years after the dispute.

After Wendy's introduced its newly designed logo in 2013, one website author believed that they had found a secret message hidden inside Wendy's iconic blue-and-white dress.

According to ABC News, a posting on the website StockLogos.com pointed out that the word "mom" appeared to be hidden on Wendy's collar. Another website agreed, perhaps prompting the chain to issue a statement on whether the hidden message was purely a coincidence or a ploy for customers to associate Wendy's food with "Mom's cooking."

"We are aware of this and find it interesting that it appears our Wendy cameo has 'mom' on her ruffled collar. We can assure you it was unintentional," Denny Lynch, Wendy's former senior vice president of communications, said at the time.