By the 1920s, the first major hamburger standWhite Castlehad opened.

Next,McDonald’sopened up shop in 1948, and the rest is history.

The impact of thesefast food burgerson the American diet and culture can’t really be understated.

Mcdonalds big mac

Shutterstock

Over the years, there have been many iconic burgers that have become synonymous with American culture.

The burger, which created a small empire, was popular because of the chain’s emphasis on cleanliness.

Anderson claimed that White Castle’s ground beef was delivered twice a day, to ensure freshness.

white castle burger

Photo: White Castle / Facebook

McDonald’s Classic Hamburger

The firstMcDonald’s burgerwas created in 1948 by brothers Richard and Maurice McDonald.

By 1961, he bought out the McDonald brothers.

Today, over two billionMcDonald’s burgers are sold every year.

mcdonalds hamburger

McDonald’s

Whataburger’s Whataburger

The firstWhataburger opened its doors in 1950.

And thus, a Texas legend was born.

was having success with an extra-large burger.

whataburger

Whataburger / Facebook

Itssignature burger, which debuted in 1948, was made from locally sourced ground beef and fresh vegetables.

Wendy’s Hamburger

In 1969, Dave Thomas opened hisvery first Wendy’s restaurantin Columbus, Ohio.

The quick-service chain quickly became known for its unusual square beef patties, made from fresh beef.

whopper jr burger king

Courtesy of Burger King

in n out double double

In-N-Out

Mcdonalds big mac

Shutterstock

wendy’s cheeseburger

Wendy’s / Facebook

five guys bacon cheeseburger

Photo: John K. / Yelp

culver’s butterburger cheese and onion rings

Culver’s / Facebook

shake shack shackburger

Shake Shack