The Apostles and their disciples - particularly Paul.
There are churches in various countries that are not described as Christian. For example, India is 80% Hindu, but has a small Christian minority, and hundreds, if not thousands, of churches.
Paul founded several churches during his missionary journeys, including the churches in Corinth, Thessalonica, Philippi, and Ephesus. These churches were located in various regions of the ancient Roman Empire.
There has never been a church that was founded by gay people. There are many gay-friendly Christian churches though, including the MCC and the UCC.
The church that Jesus Christ left on earth, was the Christian church, His Church, founded by his apostles. But what churches are these exactly. 1. The Church of Rome founded by the Apostle Peter and Paul 2. The Church of Constantinople founded by the Apostle Andrew 3. The Church of Alexandria founded by Mark the Evangelist 4. The Church of Jerusalem which was founded by Jesus himself, the continuation of his work in Jerusalem. 5. The Church of Antioch founded by the Apostle Peter. Each of these five churches before the East-West schism, formed the One true Holy and Catholic Apostolic Church, and it is from these that all other Christian denominations find their routes. Over time these churches witnessed internal schisms such as the protestant reformation which gave birth to the protestant churches. Therefore the church that Jesus Christ founded was the Christian church in all of its variation and glory
Australian Christian Churches was created in 1937.
International Christian Churches was created in 2006.
Christian Churches Together was created in 2006.
John was said to have founded the seven churches in Asia Minor.
American Evangelical Christian Churches was created in 1944.
National Association of Congregational Christian Churches was created in 1955.
New Testament Christian Churches of America was created in 1969.
Some Mormon churches have polygamous worshippers.