Sedia gestatoria an elaborate variation on the sedan chair. Two large fans ("flabella") made of white ostrich feathers —a relic of the ancient liturgical use of the "flabellum", mentioned in the "Constitutiones Apostolicae"— were carried at either side of the "sedia gestatoria". The ceremonial throne was mainly used to carry popes to and from papal ceremonies in the Basilica of St. John Lateran and St. Peter's Basilica. The "sedia" was used as part of papal ceremony for nearly a millennium. Its origins are sometimes thought to date back to the Byzantine Empire where Byzantine emperors were carried along in a similar manner,
Religion in the Republic of Ireland for their children to be excluded from religious study if they wish. However, religious studies as a subject was introduced into the state administered Junior Certificate in 2001; it is not compulsory and deals with aspects of different religions, not focusing on one particular religion. Christianity is the largest religion in the Republic of Ireland based on baptisms. Irish Christianity is dominated by the Catholic Church, and Christianity as a whole accounts for 82.3% of the Irish population. Most churches are organized on an all-Ireland basis which includes both Northern Ireland and the Republic of Ireland. Irish travellers have traditionally