What are the similarities of Catholicism and Calvinism?
Beyond belief in one God, who is a Trinity, not much.
Yes, there are similarities between Calvinism and Arminianism and the biggest similarity is that that these two systems which explain and translate the Holy Bible's account of salvation. Both Calvinism and Arminianism base their system of beliefs on the word of Bible, but both have different interpretations.
The similarities in Calvinism and Arminianism include that they both break down and decipher salvation as it is relayed in the Holy Bible. Arminianism and Calvinism both discuss beliefs of grace, free will, atonement, perseverance of Saints, and how one who practices Christianity can become saved in the eyes of God.
Pre-Revolutionary France was a theocratic Catholic country. As a result, Calvinism was considered an illegal heresy. After intense fighting, the French government passed the Edict of Nantes, which allowed tolerance of Calvinism, although no state recognition of the religion was granted. Louis XIV revoked the Edict of Nantes as a method of centralizing authority. (Having only one religion, like Catholicism, that is directly affiliated with the state centralizes authority much more-so than having multiple faiths.)
There are several major differences between Calvinism and Catholicism. John Calvin taught the total depravity of mankind, stating that man was evil by nature. The Catholic Church teaches instead that mankind is inherently good, but flawed by original sin, a defect which remains in human nature from the sin of Adam and Eve. Furthermore, Calvinism professes pre-destination, which says that our actions in this life have no effect in eternity because God has already destined…
Lutheranism and Calvinism are both heresies based on individuals by that name who lived in the sixteenth century and disagreed with Christianity as it had been established by Jesus Christ in His Church over fifteen centuries earlier. Thus Catholicism was established by Our Blessed Lord on the apostle, Peter, and his successors, who have resided in Rome near the tomb of St. Peter since the founding of the Church in Rome in the first century…
Technically, no. The voodoo religion grew out of slavery and hid itself in the trappings of Catholicism since African slaves were forbidden to use their old religions a part of their slavery. Seeing many similarities in their Loa and the many Saints the African priests and priestess' co-opted Catholicism into Voodoo. Officially the church denounces voodoo as a pagan cult and so does not support it.