In 11 countries in Central and Eastern Europe, a median of 66% say being a member of the country's official or preferred faith is important to belong to the nationality.
Five centuries after the Reformation, global Protestant Christianity looks very different than it did at its inception. Here is a look at some key facts about Protestants around the world.
While Millennials make up 32% of all U.S. adults, they account for roughly half of American Muslim adults. Read five facts about Muslim Millennials.
Most U.S. adults now say it is not necessary to believe in God to be moral and have good values, up from about half who expressed this view in 2011.
Malala Yousafzai's shooting came at a time when social hostilities involving religion were at a high point, both globally and in Pakistan.
Today, more than 80 countries either have an official religion or favor one or more religious groups over others.
While Muslims born in the United States and their immigrant counterparts share a pride in being American, U.S.-born Muslims are less likely than immigrants to feel comfortable with their place in broader American society.
Two-thirds of Muslims in the United States say the country needs to continue making changes to give blacks equal rights with whites.
About a quarter of U.S. adults now say they think of themselves as spiritual but not religious, up 8 percentage points in five years.
Nearly all Muslim Americans (97%) say they take pride in being a member of the Islamic faith. But their devotion to core religious beliefs and practices is only part of a religious identity.