Lent begins on Ash Wednesday, a day in which many Christians attend a church service and receive ashes in the shape of a cross on their foreheads. The gesture dates back thousands of years to the Old Testament, where displaying ashes served as a sign of someone's humility before God, as well as a symbol of repentance.

Holy Saturday marks the end of the Lenten season on April 19, it is a time to mourn the death of Jesus and to prepare for his resurrection. After sunset, the Easter Vigil is often celebrated it is a a liturgical tradition that celebrates the resurrection of Jesus Christ.

Soon millions of Christians will be taking 40 days to contemplate the last days of Jesus Christ before the celebration of Easter. Here's what to know.