Terracotta warriors date from over 2,000 years ago and are considered to be one of the most important recent archaeological finds. Nicky Loh/Reuters November 18, 2016 Why there’s so much backlash to the theory that Greek art inspired China’s Terracotta Army Johanna Hanink, Brown University and Felipe Rojas Silva, Brown University For centuries, historians have assumed that ‘primitive societies’ couldn’t have possibly come up with advanced techniques on their own.