Source Data Reference for:

City = Beijing
Time = 1400

City	Year	Size	Size Comment	Year Comment	Author	Title	Location
Peking	1350	400,000			Tertius Chandler	Four thousand years of urban growth	p475
Peking	1400	150,000			Tertius Chandler	Four thousand years of urban growth	p533
Peking	1400	150,000			Tertius Chandler	Four thousand years of urban growth	p537
Beijing	1400		"under 1,000,000"		George Modelski	World Cities -3000 to 2000	p63
Peking	1400	150,000			Tertius Chandler	Four thousand years of urban growth	p528
Peking	1400	150,000			Tertius Chandler	Four thousand years of urban growth	p513
Peking	1400	150,000			Tertius Chandler	Four thousand years of urban growth	p476
Peking	1400	150,000			Tertius Chandler	Four thousand years of urban growth	p74
Peking	1425		becomes largest in the world overtaking Nanking		Tertius Chandler	Four thousand years of urban growth	p527