Uncategorized September 18: National Cheeseburger Day September 18, 2012September 25, 2012 by Ruairi One theory is that the cheeseburger was created between 1924 and 1926 by a chef after a homeless man requested cheese on his burger in California. No one really knows the true origin. I made a cheeseburger to celebrate with a LOT of help from Deena.