Suppose The Great Wall of China, a series of fortifications made of stone, brick, tamped earth, wood, and other materials, was built along the northern borders of China to protect the Chinese states and empires against raids and invasions. It stretches over 13,000 miles and is estimated to have been built between the 7th and 4th centuries BC.
Can we infer that "The Great Wall of China was built in the 18th century."?