Good Friday is a religious holiday observed by Christians around the world, commemorating the crucifixion and death of Jesus Christ. It is observed on the Friday before Easter Sunday, which falls on the first Sunday after the first full moon on or after the vernal equinox (March 21). The day is called "Good" because it is believed that Jesus' death and suffering on the cross were a sacrifice that made it possible for believers to be forgiven for their sins and attain salvation. Good Friday is a solemn day of reflection and mourning for Christians, and many churches hold special services, including the Stations of the Cross, which is a reenactment of Jesus' journey to the cross.