The Early Christian Church was a period of time in the history of Christianity that began after the death of Jesus Christ and lasted until the 4th century. During this time, the church was organized into small communities and the worship of God was conducted in homes. One of the most important architectural structures of the Early Christian Church was the BASILICA. A BASILICA is a large public building with a central nave and two side aisles, typically used for religious services. It was a popular form of architecture during the Early Christian period and was often used as a place of worship.