The Ecumenical Patriarchate is the central authority of the Eastern Orthodox Church, based in Istanbul, Turkey. It is led by the Ecumenical Patriarch, who is considered the "first among equals" among Orthodox bishops. This institution plays a vital role in promoting unity and cooperation among the various Orthodox churches around the world. Founded in the early Christian era, the Ecumenical Patriarchate has a rich history and is known for its commitment to dialogue with other Christian denominations, including the Roman Catholic Church. It also engages in social and humanitarian efforts, addressing issues like poverty and religious freedom globally.