Christianity, the largest religion in the United States, was 73.7% of the total population in 2016. Nationwide Catholic membership increased between 2000 and 2017, but the number of churches declined by nearly 11% and by 2019, the number of Catholics decreased by 2 million people.
Who is the leader of the Protestant Church?
Martin Luther, often called the father of Protestantism, fundamentally changed the Christian world through his force of will and new ideas. He tried passionately to reform the Catholic Church.