David Masci

Sort through the more than 30 jurisdictions that have enacted laws allowing gays and lesbians to marry.

Americans who personally know someone in a different religious group are more likely to feel positively about members of that group.

Worldwide, most of the countries that allow gay marriage are in Western Europe. In the Americas, five countries have legalized gay marriage.

More than 18 years after the Netherlands became the world’s first country to allow same-sex marriage, Austria became the latest European nation to legalize the practice.

The share of Americans who favor same sex marriage has grown in recent years, though there are still demographic and partisan divides.

Most American adults (82%) say Muslims are subject to at least some discrimination in the U.S. today, according to a Pew Research Center survey conducted in March – including a majority (56%) who say Muslims are discriminated against a lot.

Sizable majorities of adults in six European countries with a mandatory tax say they pay it and few say they are likely to opt out.

Tuesday is the 210th anniversary of Charles Darwin’s birth. Roughly eight-in-ten U.S. adults say humans have evolved over time.

Conrad Hackett, associate director for research and senior demographer, discusses why we studied the relationship between religion and happiness, health and civic engagement.