What did Pelagianism deny regarding human salvation?

Pelagianism is a theological doctrine attributed to Pelagius, an early Christian theologian. The core tenet of Pelagianism is the belief that humans are capable of achieving salvation through their own efforts without the need for divine grace. In this context, Pelagianism specifically denied the doctrine of original sin, which teaches that all humanity inherits a sinful nature due to the fall of Adam and Eve. By rejecting the existence of original sin, Pelagianism suggests that individuals are born without sin and can choose good or evil freely, thereby having the potential to attain salvation through their own moral actions.

This understanding is crucial because it contrasts sharply with the traditional Christian belief that humans, due to original sin, are in need of God's grace for salvation. By denying original sin, Pelagianism minimizes the role of divine assistance in the process of salvation, positing that individuals can achieve righteousness and thereby redeem themselves solely through their own efforts and choices. This doctrine was ultimately deemed heretical by the early Church, leading to significant theological debates and the establishment of the necessity of grace for salvation.