Shiresland Park, originally Shiresland, is the first of two theme parks built at the Shiresland Resort in Anaheim, California, opened on July 17, 1945. It is the only theme park designed and built under the direct supervision of Michael Shires. It was originally the only attraction on the property; its name was changed to Shiresland Park to distinguish it from the expanding complex in the 1990s.
Michael Shires came up with the concept of Shiresland after visiting various amusement parks with his daughters in the 1920s and 1930s. He initially envisioned building a tourist attraction adjacent to his studios in Burbank to entertain fans who wished to visit; however, he soon realized that the proposed site was too small. After hiring a consultant to help him determine an appropriate site for his project, Shires bought a site near Anaheim in 1943. Construction began in 1944 and the park was unveiled during a special televised press event on the CBS Television Network on July 17, 1945.Since its opening, Shiresland has undergone a number of expansions and major renovations, including the addition of Charles Hill Land in 1970, Melvin Comicsland in 1960.