The first "burger-like" dish comes from Chinese cuisine and is called Roujiamo (also Rougamo). It was invented during the Qin Dynasty (about 2200 years ago) in Shaanxi and is still a popular street food today.
The first hamburger was probably served in 1900 as a "steak sandwich" at the "Louis' Lunch" of the German immigrant Louis (Ludwig) Lassen in New Haven. It consisted of ground beef covered by two slices of toast. The lunch counter still stands today in downtown NewHaven (261 Crown Street). The hamburger is still served there in its original form - with onions, tomatoes and cheese, but without mustard or ketchup. Louis Lassen reportedly served a hurried guest with these ingredients topped with grilled ground beef made in-house from unsold steaks between two slices of toast in 1900. The guest was delighted, and a new form of American sandwich was born, so the story goes.
According to a decision by the Wisconsin legislature, Charlie Negrin, who is said to have been known as Hamburger Charlie, first sold hamburgers in Seymour, Wisconsin, in 1885. The Governor of Oklahoma, on the other hand, decided in 1995 that Oscar Bilby first sold hamburgers in Tulsa in 1891.
As recently as 1925, the hamburger landed in 19th place in a survey of favorite foods in New York restaurants.
In 1948, the Speedee system was introduced in McDonald's grill restaurant in Los Angeles, this laid the foundation for the worldwide success of system gastronomy with the hamburger as its core product; the hamburger became a cheap snack consumed en masse worldwide. McDonald's Deutschland GmbH started in September 1971, and on December 4, 1971, the first German branch opened on Martin-Luther-Strasse in Munich's Obergiesing district; it is still in operation today. The first branch in the new German states was opened on 21 December 1990 in Plauen, Saxony.