July 23 is National Hot Dog Day. The hot dog is a staple to American summer holidays. Take a look at hot dogs in America throughout history.
A Florida State Seminoles fan eats a hot dog prior to the 2013 Orange Bowl at Sun Life Stadium in Miami Gardens, Florida.
A family enjoys hot dogs on Washington's Puget Sound in 1960.
U.S. President Barack Obama and British Prime Minister David Cameron eat hot dogs in 2012 while watching a college basketball game in Dayton, Ohio.
A vendor sells hot dogs at Candlestick Park in 1965 for the San Francisco Giants' season-opening home game against the Pittsburgh Pirates.
A man dressed as a "Star Wars" stormtrooper prepares a hot dog during the 2011 WonderCon in San Francisco.
Competitive eater Joey Chestnut competes in the 2012 Nathan's July Fourth hot dog eating contest at New York's Coney Island. Chestnut ate a record-tying 68 hot dogs to win.
David Dittman winces as he competes in a hot dog eating contest in Danville, Illinois, in 1957.
Judges in Chicago measure the length of the world's longest hot dog in 2003. At 16 feet and 1 inch, it bested the previous record of 15 feet, 3 inches.
The famous Coney Island hot dog stand in Aspen Park, Colorado, moved to the town of Bailey, Colorado, in 2006.
A Chicago police officer writes a traffic ticket for the Oscar Mayer Wienermobile in 2007.
Baseball fans eat hot dogs during a game at New York's Shea Stadium in 2003.
Andy Samberg, left, and Alec Baldwin perform in a "Saturday Night Live" skit called Hot Dog Family in 2005.
A Georgia State Fair attendee eats a corn dog in Atlanta in 2010.
A man in New York buys a hot dog from his car window in Lower Manhattan in 1962.
The Oscar Mayer Wienermoblie is seen in New York City during a celebration of its 75th birthday in 2011.
Then-New York Mayor Michael Bloomberg eats a hot dog at the weigh-in ceremony for the Nathan's July Fourth contest in 2013.
From left, Tim Janus, Joey Chestnut and Matt Stonie compete in the Nathan's hot dog eating contest in 2013.
Onion, Mustard and Ketchup race in the Hot Dog Derby during a 2008 Major League Baseball game between the Tampa Bay Rays and the Cleveland Indians in Cleveland.
A pair of dachshunds dressed as hot dogs participate in Ted and Amy's Annual Pet Costume Contest in Brewerton, New York, in 2012.
Massachusetts Gov. Joseph Ely, left, and New York Gov. Franklin D. Roosevelt stop for a hot dog on the Mohawk Trail in Massachusetts, where the two campaigned together in 1932.