Yes and in studying the history of the church it went through a major reformation adopting some of the non catholic religions teachings.The RCC is the most made man institution itself .
Though massive amount of this is seen in the protestant realm as well .
History of the Catholic Church - Wikipedia
The battles of Toulouse preserved the Christian west, even though Rome itself was ravaged in 850, and Constantinople besieged. In the 11th century, already strained relations between the primarily Greek church in the East, and the Latin church in the West, developed into the East-West Schism, partially due to conflicts over papal authority. The Fourth Crusade, and the sacking of Constantinople by renegade crusaders proved the final breach. Prior to and during the 16th century, the Church engaged in a process of reform and renewal. Reform during the 16th century is known as the Counter-Reformation.[7] In subsequent centuries, Catholicism spread widely across the world despite experiencing a reduction in its hold on European populations due to the growth of Protestantism and also because of religious skepticism during and after the Enlightenment. The Second Vatican Council in the 1960s introduced the most significant changes to Catholic practices since the Council of Trent four centuries before.