The Vault is Slate’s history blog. Like us on Facebook, follow us on Twitter @slatevault, and find us on Tumblr. Find out more about what this space is all about here. This 1854 map of world religion ...

Depending on where you live, faith might play a larger or lesser role in the community. A new report ranks the U.S. states that care the most about religion, and the ones where it’s less important.

When you create a marker on Google Maps, you could be revealing the most popular religious and sexual habits in your local region. At least, that’s what a group of social geographers demonstrated with ...

Hinduism, Buddhism, Christianity, Judaism, and Islam are five of the biggest religions in the world. Over the last few thousand years, these religious groups have shaped the course of history and had ...

Medieval Christians drawing boundaries around ancient Israelite tribes on Holy Land maps had no idea they were influencing how later mapmakers would depict political power. Those red ink lines, meant ...

Islam is the world's fastest growing religion but despite the increasing numbers, Christians will still outnumber Muslims in 2050, a new report has found. Religion, despite its decline in the West as ...