Collection of facts about the Uruk period

This post is a collection of facts about the Uruk period (c. 4000 - 3100 BC). There are 8 facts listed below. Source: Wikipedia

• Preceded by the Ubaid period
• Chalcolithic and Early Bronze Age in Mesopotamia
• Named after the site of Uruk (southern Mesopotamia)
• Uruk had an estimated population of 25,000 to 50,000 people
• Major constructions in Uruk include: Limestone Temple, Temple with Mosaics, Riemchen Budling, Square Building, Riemchen Temple, Hall with Pillars, Hall with Mosaics, Grand Court, Temple C, Temple D
• Irrigated agriculture, potter's wheel, standardized bricks, wool production
• Proto-cuneiform used in administration
• Followed by the Jemdet Nasr period