About these ratings. The United MileagePlus program is best for travelers based in major American cities like San Francisco, Chicago, Denver, Houston, New York City, Los Angeles and Washington, D.C. United operates several thousand domestic flights each day and services primary business and leisure destinations in Europe, Mexico and Asia.
Louis Lunch â The First Hamburger in America. I visited the birthplace of the American hamburger. Louis Lunch, open since 1895, invented the hamburger in 1900 when a patron demanded a quick lunch and Louis Lassen slapped a few steak trimmings between two slices of white bread. Thus, the hamburger was born, and very little has changed since that fateful day.
The MODERN hamburger was invented by Charles A. Hamburger at the Saint Charles Hotel in Chicago back in 1937. The modern day hamburger started out as a square shape .. like those you see at White Castles. They slowly added the idea of rounding out the hamburger during the mid 1940's.