National Hamburger Day is today -- celebrated each year on May 28. This day is set aside to honor a classic sandwich, the hamburger.
National Hamburger Day is part of National Hamburger Month.
For Some Fun Hamburger Trivia See: http://www.foodreference.com/html/fhamburgers.html
According to the National Calendar Day website: "It is most likely that the hamburger first appeared in the 19th or early 20th centuries and there is much controversy over it’s origin. The true origin might not ever be identified with certainty. Over the years, the hamburger has become a culinary icon in the United States."
"From early on, the hamburger was prepared with all of the now typically characteristic trimmings. including onions, lettuce and pickles.
"Since the beginning, many different variations of the hamburger have been created, some of which have become very popular. Much of this diversity comes from restaurant chains that have tried to reproduce the success of other very famous and extremely successful hamburger chains," the website states.