Pope Boniface VIII began the tradition of the Holy Year, known as a Jubilee, in 1300 and the Catholic Church has celebrated them every 25 years or so ever since. A major part of the Holy Year for Catholics is a pilgrimage to Rome and the ritual passing over the threshold of the holy door to symbolise the passing into the presence of God. At the same time, remission of the temporal punishment for the pilgrims' sins is granted, known as an indulgence.