Christianity, Islam, and Judaism are in the Abrahamic category. Hinduism, Buddhism, Jainism, and Sikhism are all Dharmic religions, where Taoism, Confucianism, and Shintoism are Taoic religions.
Many of these religions are still practiced today. Many of which are very popular, and many not so much. Christianity was formed when people started believing that Christ was God's son, even though the religion wasn't officially formed until christian and catholic churches started teaching from the Latin Bible. Judaism, on the other hand, is not very popular. There aren't any big Jewish cities or countries, besides Israel, but there are many Jews spread across the world.
Islam was founded by Muhammad, in 622 CE. The people that believe in Allah (their God) are called Muslims. They also believe that Muhammad was a prophet or a messenger from God. Muslims worship the Koran (a Book) and Allah (a God). This religion is an Abrahamic religion, which means it is a monotheistic religion. Muslims pray facing Mecca, to worship Muhammad's birth place. They also celebrate a world wide holiday called Ramadan, where they fast for a month. The large populations of Muslims are located in North Africa, Indonesia, and South western part of Asia.
Buddhism is a Dharmic Religion, which means it is very important to Indian Philosophy. Buddhism was founded by Gautama Siddhartha, in the fifth century, in Nepal. People that believe in Buddhism are called Buddhists. Buddhists have a ritual of Meditating to find inner peace, and they read the...