What are the biggest religions in the UK and the US?

Christianity is predominantly practiced in the UK.

The United States is mainly Christian.

Christianity: Christianity is a religion that believes in one God and the Kingdom of Heaven, and originated in the Palestinian region of the Middle East. In the history of human development, Christianity has a very important position (especially in the medieval European region). In modern times, despite the impact of the Reformation, the Scientific Revolution and the Industrial Revolution, Christianity still has a wide influence. Christians believe that human beings have original sin and that Jesus, as the Holy Son of God (the Divine or God), became the Savior (Messiah, or Christ) of humanity by sacrificing himself. Christianity is one of the three major world religions today, along with Islam and Buddhism.

The three main denominations of Christianity:

1. Catholicism

Catholicism is one of the main denominations of the Christian religion, also known as the Catholic Church, and the name "Catholicism", which has been in use since the Ming Dynasty, has become an official Chinese pronoun. Among all the Catholic churches of the Christian religion, the Roman Catholic Church (Roman Catholic Church) has the largest congregation, numbering 1.13 billion people worldwide, accounting for 17% of the world's total population, so the term "Catholic Church" (Catholic Church) often refers to the "Catholic Church with the Pope's ****** integration of the Catholic Church". "The Catholic Church is also by far the largest of all the churches of the Christian religion.

2. Eastern Orthodox Church

The Eastern Orthodox Church, also known as the Orthodox Church or the Orthodox Church, is one of the major denominations of Christianity and refers to the churches that follow the Christian traditions that have been handed down from the Eastern Roman Empire, which is one of the three major denominations of Christianity alongside Catholicism and Protestantism, and is currently the second largest denomination, with believers mainly in Greece, Turkey, Russia, Belarus, Ukraine, Romania, Bulgaria, Serbia, and other Eastern countries. It is one of the three main Christian denominations alongside Catholicism and Protestantism, and is currently the second largest. The Greek word "Orthodox" means orthodox. Unlike Catholicism, Orthodoxy consists of a number of local churches called "autonomous churches" or "self-governing churches". These churches are independent of each other, but share the same beliefs.

3. Protestantism

Protestantism is Protestant Christianity, which in Chinese means "a new church or denomination of Christianity"; or according to the original meaning of the corresponding words in the major languages of Germany, England, France and other European centers of the Reformation, as Protestantism, anti-Ro-Christian Protestantism, anti-Ro-Christianism, opposition to the Church, the vow of antinomianism, and Reformed, (also often referred to directly as "Christianity"), is one of the three major Christian denominations alongside the "Church" and "Orthodox Church".