Why is Canterbury headquarters for the Church of England?

Canterbury is the headquarters of the Church of England primarily because it is the historic seat of the Archbishop of Canterbury, who is considered the spiritual leader of the Anglican Communion. The city has been a center of Christianity in England since the arrival of St. Augustine in 597 AD, who established the first cathedral there. Canterbury's significance is further underscored by its role in the martyrdom of Thomas Becket in 1170, which solidified its status as a major pilgrimage site and a symbol of ecclesiastical authority.