New economic and development opportunities were brought to the area in the 1960s and 1970s, fueled by both the military and the space industry, as newly arriving Longwood residents were employed at Martin-Marietta's new missile plant in Orlando; Naval Air Station Sanford; Orlando Air Force Base (redesignated Naval Training Center Orlando in 1969); and McCoy Air Force Base in Orlando; as well as Cape Canaveral Air Force Station; Patrick Air Force Base; and the NASA John F. Kennedy Space Center in Brevard County. The development and opening of Walt Disney World in October 1971, along with other tourist attractions and the high technology corridor of businesses, especially those engaged in the modeling, simulation and training (MS&T) industry and associated military training systems activities near Florida Technological University (FTU), now the University of Central Florida (UCF), fueled even further growth. Short-term economic downturns caused by the closure of NAS Sanford in 1968 and McCoy AFB in 1975 were offset with other economic growth across Central Florida during the 1970s and 1980s. As a result, Longwood developed into primarily a residential community for residents working elsewhere in Seminole County or in adjacent Orange County. By 2000, the city had taken significant steps to revitalize its downtown historic district, expanded its borders through annexation and in the process gained a resident population exceeding 13,700.