<human>:  What is the history of the Burger?
<bot>: The history of the burger dates back to the 1800s in Hamburg, Germany, where a cook named Otto Kuase is credited with inventing the hamburger sandwich. During the 19th century, German immigrants brought the hamburger to America, where hamburger stands, drive-ins, and diners began offering it to customers. By the mid-20th century, the hamburger had become the most popular sandwich in the United States. Today, hamburgers are enjoyed all over the world and come in many styles and varieties.