These days Calvinism is usually reduced to what’s known as, the 5 points of Calvinism or The Doctrines of Grace. These five points are easily remembered by the acrostic TULIP. T-Total Depravity, U-Unconditional Election, L-Limited Atonement, I-Irresistible Grace, P-Perseverance of the Saints.
Calvinism, also known as reformed theology, is a movement within orthodox Protestantism that was developed by John Calvin (1509-1564), a French theologian.
This system of theology was reaffirmed by the Synod of Dordt in 1619 as the doctrine of salvation contained in the Holy Scriptures. The system was at that time formulated into “five points” in answer to the unscriptural five points submitted by the Arminians to the Church of Holland in 1610.