The first McDonald’s restaurant was opened ____by___ Dick and Mac McDonald ___on____ the 15th ___of____ May 1940. The best selling products ___in____ their restaurant were hamburgers. So the McDonald brothers thought ___about____ a way to produce hamburgers more quickly. This was introduced _____in___ 1948 and became known ____as___ the Speedee Service System. The first franchised McDonald’s restaurant was opened ____in____ 1953, and today you can find McDonald’s restaurants ___in____ more than 100 countries. The meats ___in____ the burgers vary ___with____ the culture ____of___ the country. Franchisees and future managers ___of____ McDonald’s restaurants are trained at Hamburger University, which is located ___in____ Oak Brook, a suburb ____of___ Chicago. McDonalds is also known ___for____ its sponsorship ___of____ various international sport events.