The Catholic Church, with over 1 billion members globally, is the world’s largest Christian church. The phrase ‘Catholic Church’ was first used in a letter from Ignatius in 110 CE, and throughout the first few centuries, the teachings of the Church began to take shape. The church faced its first major schism in 1054 when the Eastern Orthodox branch split, and later in the 16th century during the Reformation when Protestant movements left. Read articles about the Catholic Church below.
With corruption plaguing the Catholic Church, Reform movements, science, and the rise of literacy gradually chipped away at its power.