Hinduism is a very popular religion in India and may be the oldest religion in history that started in India, and Indian Hindus account for 80%. Since Hinduism is a very popular religion, 900 million Hindus (Miksic, 10) compete with Christianity and Islam all over the world. Regarding the popularity of Buddhism, even India is not as common as Hinduism. A very important attribute of Hinduism is the caste system. The caste system consists of five levels. Each level is born at this level and can not be exchanged or married with others.
Between 100 to 1000 years, Buddhism and Hinduism were established in Asia. Hinduism extends from South Asia to Southeast Asia, Indian Buddhism prosper in East Asia. In other parts of the world, Christianity became the main religion of the Mediterranean (see Chapter 7). As shown in the next chapter, Islam appears at an exceptional speed and spreads throughout West Asia. Initially, Uma chose the caliphate system by consensus. But the third caliph killing confused the horse. Sunnis believes that only the people elected by the agreement can become caliphated. Shia faith believes that only people with relevance to Muhammad are qualified. In the century after Muhammad's death, Muslims work hard to solve this problem. After all, they accepted the idea of succession to the dynasty in 680 when Umaid's caliph's son succeeded him.
Ethnic marriage in Southeast Asia can be traced back to Indian culture, Hinduism and Buddhism spread to this area. Since the beginning of the first century most male businessmen and businessmen from the subcontinent of India are married to local women in Cambodia, Myanmar, Champo, Central Siam, Malay Peninsula, Malaysia. In the Middle Ages, many Indian kingdoms appeared in Southeast Asia. Since the 9th century many Arab men traders from the Middle East have settled in the Malay Peninsula and Malay Islands and later married local Malaysians, Indonesians and women on an island called the Philippines. This led to the spread of Muslims in Southeast Asia. Many Chinese, Indian, Arabian businessmen settled in the kingdom of the sea of Southeast Asia and married a local woman from the 14th century to the 17th century.
Until about 1500 AD, businessmen, adventurers, teachers, and pastors of South India were still dominated by Southeast Asia. Both Hinduism and Buddhism have spread from India to these countries and have had many years of mutual tolerance. After all, the mainland country became a Buddhist. According to the legend after Brahmin married a local chief family, it was the Kingdom of Southern Anhui that first became widely known among these Hindu nations. These local residents are Khmer people. Weinan has prosperous for about 500 years. It has prosperous trade between India and China, and its engineers have developed a wide range of canal systems. A strategy to govern the country based on the elite practice of Indian culture, art and science. The eastern part of the Vassal Kingdom spread to the southern part of Vietnam and the western part spread to the Malay Peninsula.