Church architecture or ecclesiastical architecture refers to the
architecture of buildings of
Christian churches. It has evolved over the two thousand years of the Christian religion, partly by innovation and partly by imitating other architectural styles as well as responding to changing beliefs, practices and local traditions. Both theological and practical influences on church architecture have included
pagan and
secular buildings and those of other faiths. Buildings were at first adapted from those originally intended for other purposes but, with the rise of distinctively ecclesiastical architecture, church buildings came to influence secular ones which have often imitated
religious architecture. In the 20th century, the use of new materials, such as concrete, as well as simpler styles has had its effect upon the design of churches and arguably the flow of influence has been reversed.
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