This document provides an overview and summary of key events in Acts chapters 1 and 2, including Jesus' appearances to disciples after his resurrection, the selection of Matthias to replace Judas, and the descent of the Holy Spirit at Pentecost. It notes the four main elements of early Apostolic preaching included addressing the age of fulfillment, summarizing Jesus, justifying from the Old Testament, and a call to repentance. The early church is described as possessing apostolic teaching, mutual fellowship, constant edification, and exponential growth.