Oikoumene.org is the official website of the World Council of Churches (WCC), a worldwide fellowship of Christian churches seeking unity, common witness, and service to humanity. The website serves as a platform for sharing information, resources, and news related to the initiatives and activities of the WCC and its member churches. It provides an overview of the organization's history, mission, and key areas of focus, including the promotion of justice, peace, and reconciliation. Oikoumene.org also features articles, publications, and multimedia content that encourage dialogue, understanding, and collaboration among Christians from different traditions and cultures, in order to work towards a more just and peaceful world.

The different debates highlighted the vocation of the WCC as an entity where Christians of various ecclesial cultures and traditions could dialog, exchange, confront and reflect.museeprotestant.org351 representatives from 147 churches attended the first assembly of the Ecumenical World Council of Churches (WCC). They came mainly from Europe and the United States.

oikoumene.orgLeaders representing more than 100 churches voted in 1937-38 to found a World Council of Churches, but its inauguration was delayed following the outbreak of the second world war.

So it doesn’t include the Orthodox Church, the Coptic Church, or any of the ancient churches.quora.comThe Catholic Church is not a member of the World Council of Churches. All of the members of the WCC were churches founded after the 15th century.