The Lantian Man was discovered in 1963 in Lantian County , 50 km ( 31 mi ) southeast of Xi'an .
The Lantian Man was discovered in 1963 in Lantian County , 50 km ( 31 mi ) dates back to at least 500,000 years before the present time .
The Lantian Man was discovered in 1963 in Lantian County , 50 km ( 31 mi ) southeast of Xi'an , and dates back to at least 500,000 years before the present time .