Fasting was once a religious endeavor. The idea that skipping meals could lead to improved health emerged around the turn of the twentieth century.

Five hundred years after posting his ninety-five theses and launching the Reformation, Martin Luther remains a big man of history. Literally.

Some 19th-century utopian idealists took up deeply unconventional sexual arrangements based specifically on their religious beliefs.

Both the blame and the credit for capitalism has often been placed at the feet of a 16th-century Christian theologian named John Calvin.

The bicycle craze of the 19th century, in which both men and women participated, was seen as a moral affront by church leaders. 

A different side to affirmative-action: How legacy admissions maintained white Protestant student enrollment at elite universities.