McDonald’s is an American hamburger and fast food restaurant chain. It was founded in 1940 as a barbecue restaurant operated by Richard and Maurice McDonald. In 1948, they reorganized their business as a hamburger stand, using production line principles. Today, McDonald’s is one of the world’s largest restaurant chains, serving approximately 68 million customers daily in 119 countries. McDonald’s primarily sells hamburgers, cheeseburgers, chicken products, french fries, wraps, breakfast items, soft drinks, milkshakes, and desserts. In response to changing consumer tastes, the company has expanded its menu to include salads, fish, wraps, smoothies and fruit.