Vote for the best art museum once per day until polls close on February 27 at noon ET. The 10 winners will be announced on March 6. Have questions? Read the official Readers' Choice rules. There's no ...

Researchers have found the oldest known evidence of lead pollution dating to around 5,200 years ago in ancient Greece.

SUMMARY Slavery was integral to Roman society, and slaves outnumbered citizens in Rome. There were many routes to slavery, including as prisoners of war, selling oneself into slavery, or being born a ...