Michael Lipka

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.

Hindus are among the least educated of the world’s major religious groups when looked at globally, but this is not true of Hindus everywhere.

Americans are divided about the contentious debate over the rights of transgender people to use public restrooms of their current gender identity.

As the percentage of U.S. adults who do not identify with a religious group grows, we asked these people to explain, in their own words, why they left.

Americans are wary of the prospect of implanting a computer chip in their brains to improve their mental abilities or adding synthetic blood to their veins to make them stronger and faster. And this is particularly true of those who are highly religious.

A majority of U.S. adults still say religious institutions contribute either “a great deal” (19%) or “some” (38%) to solving important social problems, but the combined figure of 58% has fallen significantly in recent years.

A growing share of self-identified “evangelical or born-again” Protestants (41%) says it has become more difficult to be an evangelical Christian in the U.S. in recent years; just 34% answered the question the same way in September 2014.

The U.S. religious landscape is already in the midst of some dramatic changes when it comes to the growth or decline of people with certain religious identities. And while it is impossible to predict exactly how that landscape will shift in the future, some key demographic factors — particularly age — can provide a clue as to how things might unfold in the coming decades.

Israel has been a Jewish-majority country since its founding in 1948, and its treatment of religious and ethnic minorities – including some groups within the Jewish community – has persisted as a hotly debated topic throughout the nation’s history.

For the National Day of Prayer, we rounded up survey data on Americans’ prayer habits, as well as historical instances of prayer intersecting with the government.