Derek

A cotton and agave fiber Inca khipu is seen at an exhibit at the Smithsonian National Museum of the American Indian in 2015 in Washington, D.C. Brendan Smialowski/AFP via Getty Images hide caption toggle caption Brendan Smialowski/AFP via Getty Images The Inca Empire in South America, one of the most powerful pre-Columbian societies, was known

People attend an interfaith service on October 29, 2018 at Adas Israel Congregation in Washington, D.C. Alex Wong/Getty Images/Getty Images North America hide caption toggle caption Alex Wong/Getty Images/Getty Images North America More than 1,000 rabbis and other Jewish leaders from around the globe, including in Israel and the U.S., have signed a public letter

A coffee break in the United States and elsewhere is a short mid-morning rest period granted to employees in business and industry. An afternoon...