Early religious expression in Chautauqua was usually of a general nature, comparable to the later Moral Re-Armament movement. Later on, in the first half of the 20th century, Fundamentalism was the content of an increasing number of Chautauqua sermons and lectures. However, the great number of Chautauquas, as well as the absence of any central authority over them, meant that religious patterns varied greatly among the different Chautauquas. Some were so religiously oriented that they were essentially church camps, while more secular Chautauquas resembled summer school and competed with vaudeville in theaters and circus tent shows with their animal acts and trapeze acrobats.