While Protestants arrived in the island of Cuba early in its colonial days, most of their churches did not flourish until the 20th century with the assistance of American missionaries.[1] In the early 20th century, Cuban Protestant churches were greatly aided by various American missionaries who assisted in the work in the churches and also provided support from their home churches.[2] When Fidel Castro’s regime overtook the country in 1959, Protestant churches were legally allowed to continue. Nevertheless, certain incidents as detailed below, and religious persecution kept them from prospering. During the Special Period that began in 1991, Protestant churches began to flourish once again and today have become a primary religious group of Cuba.[3] The Protestant population of Cuba is estimated at 11%.[4]