Coptic Christianity is one of the oldest branches of Christianity, originating in Egypt around the 1st century AD. It is based on the teachings of Saint Mark, who is believed to have brought Christianity to Egypt. The Coptic Orthodox Church, the largest Christian denomination in Egypt, follows its own traditions and liturgical practices, distinct from other Christian groups. Copts believe in the Holy Trinity and the divinity of Jesus Christ, but they have unique theological views, particularly regarding the nature of Christ. The Coptic calendar includes many religious festivals, and the community has faced significant challenges throughout history, including periods of persecution and discrimination.