Former Largest Cities

Around 1300 B.C.

Around 300 B.C.

From 0-300 A.D.

Around 1150 A.D.

with a good probability the worlds largest city around 7000 BC with an estimate of 5000-10000 inhabitants.

Chang’an (Xi’an) had around 400,000 inhabitants between 200 and 100 BC

It has been estimated that Babylon was the largest city in the world c. 1770 – c. 1670 BC, and again c. 612 – c. 320 BC (wiki)

Beijing, 1425-1625

From 920-1000 A.D.

Hangzhou had around a Million inhabitants between 1200 and 1400.

London, 1820-1915

150-450 AD

possibly the largest city around 3500 BC.

Memphis was largest city from 3100 B.C. to 2800 B.C.

From 350-550 A.D.

During the Unified Silla period (618AD to 918AD), Gyeonju's peak population likely reached 1,000,000 inhabitants (wiki)

Largest city around 2000 B.C.

possibly the largest city around 2400 BC with around 40000 inhabitants

Uruk: "At its height c. 2900 BC, Uruk probably had 50,000–80,000 residents living in 6 km2 (2.32 sq mi) of walled area; making it the largest city in the world at the time." (wiki). Eridu was the largest City around 3700 with 6000-10000.