What religion rejects the cast system?

The Caste System is a system of social ranks determined by occupation, economic status, religious significance and so forth.

Caste systems exist or have existed in many cultures including India, China, Korea, Japan, Africa, Hawaii, Pakistan, and Nepal.

The Indian Caste system may be the most well known and classically includes at least five groups:

Brahmins: the Priestly and highest caste, the Warrior Caste, Merchant Caste, The Peasant Caste, and the "Untouchables" such as lepers. The Indian caste system is extremely complicated.

Gautama Buddha: founder of Buddhism, Mahavira: founder of Jainism, and Nanak: founder of Sikhism, all opposed the caste system and welcomed members of all social ranks. Early Christianity also opposed class based divisions as embraced members of many classes, although a comparable caste system did not exist in Judaism.