Claim: "The Great Wall of China, built 2,000 years ago, is 13,000 miles ."
Fact-check: Is Donald Trump right that the Great Wall of China is 2,000 years old and 13,000 miles long?
Verdict: half-true
Organisation: PolitiFact
Author: Louis Jacobson
Date published: 2016-03-07T00:00:00