Before opening his own franchise, Dave Thomas worked as a head cook at a Hobby House restaurant, a chain 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 the design of the iconic red-and-white-striped fried chicken bucket, helped grow KFC's popularity.

Thomas was sent to Columbus, Ohio, to revitalize a few failing KFC franchises, turn them around, and 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 his inability 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 second-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 Sanders' success as the face of KFC, Thomas decided to 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 from 2006, the chain serves about 300 million Frostys every year.

While other chains have claimed to have invented 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 renamed "Pick-Up Window" to better reflect the chain's quick-service model. 

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 fewer than 1,000 restaurants to air a national commercial.

Wendy's now has around 6,000 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 appeared in 1984, claimed that Wendy's hamburgers had larger patties than those of the chain's competitors.

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 The Sun Sentinel 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, a website author claimed to have found a secret message hidden inside Wendy's iconic blue-and-white dress.

ABC News reported that 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 clarifying whether the hidden message was purely a coincidence or a ploy to get 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.

After McNuggets were introduced in 1979, franchisees couldn't get enough of them and demanded another hot product to sell.

A nationwide chicken shortage left some franchises without McNuggets, so McDonald's chef René Arend created a fast, affordable alternative.

The design for the McRib used new technology to create a "restructured meat product" developed by Richard Mandigo at the University of Nebraska, NPR reported.

Arend designed the McRib's shape to "look like a slab of ribs," and while the product is made with pork, it doesn't include any actual rib bones.

Made with boneless pork, barbecue sauce, onions, and pickles, the menu item sparked early interest from customers nationwide.

However, while customers showed up to try the McRib for the first time, not many returned for repeat visits, and it disappeared from menus in 1985.

That same year, McDonald's introduced a mini version of the sandwich, the McRib Jr.

The McRib found success as a limited-time offer. In 2007, McDonald's sold 30 million sandwiches, Maxim reported.

In 2008, devoted McRib fan Aaron Klein started the McRib Location website that used crowdsourced tips to help people find the sandwich at select locations nationwide.

"The McRib has been a beloved menu item at McDonald's since its inception nearly 40 years ago," Linda VanGosen, McDonald's vice president of menu innovation, said in a statement at the time.

"There's nothing quite like the taste of the McRib. To our customers, it's become more than a delicious, saucy moment … it's a season, and it's taking the internet by storm. That's why this year we're proud to serve the McRib nationwide for everyone to enjoy."

The launch proved successful and boosted sales that were declining amid the COVID-19 pandemic, Restaurant Business reported.

During the pandemic, chains including Burger King and KFC turned to nostalgia, offering customers familiar comforts during an uncertain time.

However, despite the hype, we were a bit underwhelmed.

The rectangular pork patty reminded us of the sausage McDonald's uses on its breakfast sandwiches, while the pickles and onions tasted crisp and fresh.

We enjoyed the toppings, but the sandwich was missing the barbecue flavor we expected — likely because it arrived with barely any sauce, unlike the much saucier McRibs seen online. This could've been a restaurant-specific error at the time, but we haven't been back to reorder it since.

But yet again, the sendoff didn't stick.

The McRib returned to menus in 2023, 2024, and 2025, continuing the long-running cycle of limited-time disappearances and comebacks.

However, unlike previous years, the McRib was only available in select cities in 2025.

After years of dramatic goodbyes and limited-time returns, McDonald's brought the polarizing pork sandwich back once again in 2026.

Starting on October 27 at select locations in cities including Los Angeles, Chicago, Miami, Atlanta, Philadelphia, and Dallas, fans can purchase a McRib for a limited time, the company told USA Today. Customers in other cities are encouraged to check their McDonald's app for availability.

Its latest comeback proves the McRib's strange staying power.

Every time it disappears, fans wonder whether this will finally be the last time — and head to their nearest location to try it for (possibly) the final time.