The development of religious architecture in what is now the United States is tied closely to continuing immigration and the development both of de facto and de jure religious pluralism. Prior to the arrival of Europeans, seminomadic Native Americans built temporary structures, while those farther south erected more permanent temples, most notably those of the Aztecs in Mexico. Spanish settlers in what is now the U.S. Sunbelt built mission chapels, with those in California incorporating a mixture of styles and building techniques derived from Spanish, Moorish, and indigenous traditions. Puritans in New England and Quakers in Pennsylvania erected meeting houses, architecturally simple structures based on secular models and eschewing the notion of “sacred space.” Anglicans from Boston to Charleston imported English neo-classical models devised by Sir Christopher Wren and Sir James Gibbs in the mother country, devised to accommodate Anglican sacramental worship. Later classical styles, especially the Roman and Greek revivals, reflected the republican ethos of the New Republic and were adopted by a whole range of religious traditions including Catholics and Jews. Urbanization and enhanced immigration following the Civil War saw adaptations by Protestants, including auditoriums, institutional churches, and the Akron Plan; by Jews, who invented a new, eclectic style for synagogues and temples; by Anglicans, who revived English Gothic traditions for churches and cathedrals; and by Roman Catholics, who turned to Continental Gothic for their inspiration. Mormon temples, beginning in Salt Lake City, took on new forms after that faith spread across the nation. During the post-WWII era, the colonial revival style became popular, especially in the South, reflecting patriotic and regional values. Following the immigration reform of 1965, waves of newcomers from Asia and the Middle East brought their traditional mosques and temples, often considerably modified for worship in the diaspora. Religious architecture, like the nation at large, has reflected an ongoing process of change, adapting old forms and inventing new ones to accommodate changing demographics, settlement patterns, and the necessities of living in a pluralistic society where religion is protected but not supported by the government.