The Apostolic Age refers to the period in early Christianity from the death of Jesus Christ around 30 AD to the death of the last Apostle, traditionally believed to be John the Apostle, around 100 AD. This era is characterized by the spread of the Christian faith through the teachings and missionary work of the Apostles, who were the original followers of Jesus. During the Apostolic Age, the foundations of the Christian Church were established, including the formation of early communities and the writing of key texts, such as the New Testament letters. This period laid the groundwork for the development of Christian doctrine and the eventual establishment of Christianity as a major world religion.