Overall, U.S. adults with college degrees are less religious than others on some measures. However, Christians with higher levels of education appear to be just as religious as those with less schooling.
This year, the Jewish festival of Passover coincides with the Christian celebration of Easter. Here are five key facts about Americans and their holy texts.
Among the world's 25 most populous countries, Russia, Egypt, India, Pakistan, and Nigeria stand out as having the most restrictions on religion (as of the end of 2015) when both government restrictions and religious hostilities are taken into account.
Government restrictions on religion and social hostilities involving religion increased in 2015 for the first time in three years. Government harassment and use of force surged in Europe, as did social hostilities against Muslims.
Though the percentage of religiously "nones" in America has risen, the global share of religiously unaffiliated people is expected to fall in coming decades.
While the world’s population is projected to grow 32% in the coming decades, the number of Muslims is expected to increase by 70% – from 1.8 billion in 2015 to nearly 3 billion in 2060.