 On this July 4th, the Caesar salad turning 100. It was a hot and steamy night in Tijuana, Mexico on July 4th, 1924. An Italian immigrant by the name of Caesar Cardini had a packed house at his restaurant. It was prohibition. Most of his customers were Californians who'd crossed the border to drink, and they were hungry. Cardini needed to feed them something, so he threw together what he had in the kitchen. Romaine lettuce and anchovies, some garlic, Dijon mustard, lime juice, croutons, Parmesan cheese. A legend was born.