Original Sin is a Christian doctrine that suggests humanity inherits a fallen state due to the first sin committed by Adam and Eve in the Garden of Eden. This event, described in the book of Genesis, signifies the loss of innocence and the introduction of sin into the world. According to this belief, all humans are born with a sinful nature, which separates them from God. The concept emphasizes the need for redemption, often through the sacrifice of Jesus Christ, who is seen as the means to restore the relationship between humanity and the divine.