Fletcher Davis of Athens, Texas claimed to have invented the hamburger. According to oral histories, in the 1880s, he opened a lunch counter in Athens and served a 'burger' of fried ground beef patties with mustard and Bermuda onion between two slices of bread, with a pickle on the side.

Est. 1895 in New Haven, CT Recognized by the Library of Congress as the Birthplace of the Hamburger Sandwich, Louis' Lunch has been featured in many print and television spots, including: The Travel Channel, The Food Network, Zagat, Food and Wine Magazine, among many others.

Nagreen, affectionately known as "Hamburger Charlie," apparently squashed a beef meatball between slices of bread so his customers could walk around eating — a concoction he claimed was the first hamburger.

13 ½ oz. of old school burger, 1/3 lb. (Signature Burgers - Old School, The Counter) contains 790 Calories. The macronutrient breakdown is 28% carbs, 45% fat, and 27% protein.