Determining the number of Christian denominations is a virtually impossible task. Though the numbers of known denominations can be easily traced, even for the more obscure offshoots of the main denominations, there are always going to be small pockets of believers who prescribe to the Christian doctrines in their own unique way. Therefore, the best historians can do is track down the basic denominations and make it clear that there are many branches that lead away from those most basic congregations.
Most Christian denominations are considered as such because they believe in the basic tenants of Christianity, including the Bible, the Trinity, and the Nicene Creed. The most common denominations in Christianity came into being in the 500 years since the Protestant revolution, with the exception of a few. Catholic, Orthodox, Anglican, and Protestant are the major denominations from which other denominations formed.
What are the most common? You probably know someone who follows one of these, or you might follow one of them yourself:
Roman Catholic has over one million followers and is considered to be one of the oldest Christian religions.
Amish are known for their strict beliefs, their tendency to live away from others of differing beliefs, and their determination to avoid modern technology.
Baptists are one of the largest denominations and are known for baptism (as the name suggests) as well as their desire for a firm separation of church and state.
Lutheran is based on the teachings of Martin Luther and is a very large denomination.
Eastern Orthodox is prominent in Germany, Russia, and other eastern countries, though it is becoming more common throughout the world.
Anglican is considered the middle ground between Protestants and Catholics.
Protestant is a wide-ranging denomination that includes several different beliefs and smaller denominations.
Presbyterian and Reformation are two denominations that base their beliefs on the teachings of John Calvin.
Seventh-day Adventists are known for their strict observance of the Sabbath and their emphasis on physical health.
Many “spin off” religions were borne of these main denominations, such as the Primitive Baptist, the Pentecostal, and other religions that have a smaller following but offer powerful teachings nonetheless.