Four specific instances where religion was a key factor in us history

Most Americans say that religion plays a "very important" role in their lives, a unique proportion among developed countries. [2] Most Americans (73%) identify themselves as Christians and about 20% they don't identify with any religion. [3] According to the American Religious Identification Survey (ARIS), in 2008, 76% of Americans identified themselves as Christians, with 51% attending different types of Protestant churches, and 25% professing to be Catholics. [4] [5] The same survey says that about 4% of the population professes other religions (including, among others, Judaism, Buddhism, Islam, and Hinduism) , that 15% of the adult population had no religion, and that another 5.2% did not know or refused to answer. [4] According to a 2012 survey, 36% of Americans say they go to The church at least once a week.

According to a study by the American Association of Statistics of Religious Bodies of 2012, it showed that while in effect 70% of Americans consider themselves Christians, the second most practiced religion varies by state. [7] Islam is the second largest religion in 20 states, mainly the southern and central states, Judaism is in 15 states, mostly those of the Atlantic coast, Buddhism is the second largest religious community in 13 states; the Pacific coast states plus Hawaii and Alaska. Of these, Hawaii is the one with the highest percentage of Buddhists being close to 9%. [8] Hinduism on the other hand is the second religion in Arizona and Delaware and Baha'is is the second most important religious creed in South Carolina.