Answer:
2200 years ago
Step-by-step explanation:
The Terracotta Army was built from 247 BC or 246 BC to 208 BC over 2,200 years ago. According to a history book named Shih Chi, the 13-year-old Qin Shi Huangdi (259 BC - 210 BC) commanded his subjects to built his mausoleum soon after he was crowned as the king of Qin State. The time should be 247 BC or 246 BC.
P.S this is a copy and past