Across the U.S., religious courts operate on a routine, everyday basis. How do some of the country's major Christian traditions and other religions - including Islam, Judaism, Buddhism and Hinduism - decide internal matters and apply their religious laws?

A breakdown of 17 major religious groups' views on the issue of abortion.  

A country-by-country analysis of data from more than 2,500 censuses, surveys and population registers finds that 84% of adults and children around the globe are religiously affiliated. The study also finds that the median age of two major groups – Muslims (23 years) and Hindus (26) – is younger than the world’s overall population (28), while Jews have the highest median age (36).

In recent years, same-sex marriage has been a contentious subject within many religious groups in the U.S. Here is an overview of where 16 religious groups stand on this issue.