Dick and Mac Mcdonald were two brothers who started the McDonald's brand in California after moving their hotdog stand to San Bernadino from Monrovia Airport. After realizing that hamburgers were their most popular product, the brothers reinvented their restaurant using their Speedee Service System in 1948. It was a concept that created a production line of hamburgers that were made before being ordered. This concept pioneered the fast food industry and was in complete contrast to most restaurants that only prepared food after the customer had placed their order.