My inquiry into the Baptist Church began with one of our nurses, Eritrea Jackson, a Baptist, who was under the impression that the Baptist Church had it origin with John the Baptist. This is not the case.
The Baptist Church had its origin in the early 17th Century, soon after the Protestant Reformation in England. It began with the dissatisfaction of some members of the Church of England. Some, who tried to reform the Church of England from within and became known a Puritans. Other chose to leave the Church and became known as Separatists.
Historians trace the earliest Baptist church back to 1609 in Amsterdam, with John Smyth as its pastor. The persecution of religious nonconformists in England led Smyth with fellow Separatist from the congregation he had gathered in Linconshire, separate from the established church (Anglican). He did not believe in infant baptism as other Separatists did and most of his followers were baptized as infants, so he first rebaptized himself and then his followers. He believed only in baptizing those who first confessed belief in Christ. Toward the end of his life he came to believe that his self-baptism was invalid, so he applied to the Mennonite church for membership but died while waiting. (Baptists-Wikipedia)
The church's name "Baptist" was derived from their way of baptizing, by immersion as John the Baptist and early Christians had done. The early Baptists preferred to be called "Brethren", or "Brethren of the Baptized way". People who witnessed public baptisms by immersion began to call them "Baptists" and the name endures to this day. (Webpage: Baptist History and Heritage Society/Baptism Beginning)
Consider the following:
The Catholic Church traces its origin with Christ and the twelve apostles. The faith is passed on from one generation to the next by "Apostolic Succession" meaning conferring the power of the priesthood from one generation to the next by actual physical contact, the "laying of hands" by a bishop on a man chosen to become a priest. The priest is responsible to pass on the faith by Sacred Signs (Sacraments) which bring about what they signify.
The name "Catholic" is not a sectarian name. Catholic means universal. The Catholic Church is the Universal Church or the Church open to all mankind.