White Castle is an American regional fast food

Fast food

Fast food is the term given to food that can be prepared and served very quickly. While any meal with low preparation time can be considered to be fast food, typically the term refers to food sold in a restaurant or store with preheated or precooked ingredients, and served to the customer in a...

 hamburger

Hamburger

A hamburger is a sandwich consisting of a cooked patty of ground meat usually placed inside a sliced bread roll...

 restaurant chain

Chain store

Chain stores are retail outlets that share a brand and central management, and usually have standardized business methods and practices. These characteristics also apply to chain restaurants and some service-oriented chain businesses. In retail, dining and many service categories, chain businesses...

 in the Midwestern United States

Midwestern United States

The Midwestern United States is one of the four U.S. geographic regions defined by the United States Census Bureau, providing an official definition of the American Midwest....

 and in the New York metropolitan area

New York metropolitan area

The New York metropolitan area, also known as Greater New York, or the Tri-State area, is the region that composes of New York City and the surrounding region...

, and the first of its kind in the US. It is known for its small, square hamburgers. Sometimes referred to as "sliders

Slider (sandwich)

A slider is a small sandwich, typically around across, served in a bun. The term primarily refers to small hamburgers, but can also cover any small sandwich served on a slider roll...

", the burgers were priced at five cents

Cent (currency)

In many national currencies, the cent is a monetary unit that equals 1⁄100 of the basic monetary unit. Etymologically, the word cent derives from the Latin word "centum" meaning hundred. Cent also refers to a coin which is worth one cent....

 until the 1940s, and remained at ten cents for years thereafter. For several years, when the original burgers sold for five cents, White Castle periodically ran promotional ads in local newspaper

Newspaper

A newspaper is a scheduled publication containing news of current events, informative articles, diverse features and advertising. It usually is printed on relatively inexpensive, low-grade paper such as newsprint. By 2007, there were 6580 daily newspapers in the world selling 395 million copies a...

s which contained coupons offering five burgers for ten cents, takeout only.
White Castle was founded in 1921 in Wichita, Kansas

Wichita, Kansas

Wichita is the largest city in the U.S. state of Kansas.As of the 2010 census, the city population was 382,368. Located in south-central Kansas on the Arkansas River, Wichita is the county seat of Sedgwick County and the principal city of the Wichita metropolitan area...

.