Malaysia has a multi-ethnic, multicultural, and multilingual society. The original culture of the area stemmed from indigenous tribes that inhabited it, along with the Malays who later moved there. Substantial influence exists from Chinese and Indian culture, dating back to when foreign trade began. Other cultural influences include the Persian, Arabic, and British cultures. Due to the structure of the government, coupled with the social contract theory, there has been minimal cultural assimilation of ethnic minorities.