Pius the 9th not wanting to call another council wrote the syllabus of errors. In it he listed all the things that are an error in the eyes of the catholic church BASED off of two thousand years of history. So here is a chunk of it. III. INDIFFERENTISM, LATITUDINARIANISM 15. Every man is free to embrace and profess that religion which, guided by the light of reason, he shall consider true. -- Allocution "Maxima quidem," June 9, 1862; Damnatio "Multiplices inter," June 10, 1851. 16. Man may, in the observance of any religion whatever, find the way of eternal salvation, and arrive at eternal salvation. -- Encyclical "Qui pluribus," Nov. 9, 1846. 17. Good hope at least is to be entertained of the eternal salvation of all those who are not at all in the true Church of Christ. -- Encyclical "Quanto conficiamur," Aug. 10, 1863, etc. 18. Protestantism is nothing more than another form of the same true Christian religion, in which form it is given to please God equally as in the Catholic Church. -- Encyclical "Noscitis," Dec. 8, 1849. Those four points alone can be found to be true in the current teachings of the catholic church. Read the council of Trent documents, read the baltimore catechism. I mean READ the history. Angry ex catholic who feels like someone is trying to mislead people.