Context: Later, the 3rd dynasty of Ur under Ur-Nammu and Shulgi, whose power extended as far as southern Assyria, was the last great "Sumerian renaissance", but already the region was becoming more Semitic than Sumerian, with the rise in power of the Akkadian speaking Semites in Assyria and elsewhere, and the influx of waves of Semitic Martu (Amorites) who were to found several competing local powers including Isin, Larsa, Eshnunna and eventually Babylon. The last of these eventually came to dominate the south of Mesopotamia as the Babylonian Empire, just as the Old Assyrian Empire had already done so in the north from the late 21st century BC. The Sumerian language continued as a sacerdotal language taught in schools in Babylonia and Assyria, much as Latin was used in the Medieval period, for as long as cuneiform was utilized.

Question: Which dynasty of Ur was the last great Sumerian renaissance?
Answer: 3rd

Question: Who guided Ur during the last gasp of power?
Answer: Ur-Nammu and Shulgi

Question: Even during the 3rd dynasty, what was happening to the racial makeup of the region?
Answer: more Semitic than Sumerian

Question: What was there an influx of waves of coming into Sumerian lands?
Answer: Amorites

Question: How long did the Babylonians and Assyrians continue to teach the Sumerian language in their schools?
Answer: for as long as cuneiform was utilized.

Question: When was the first Sumerian renaissance?
Answer: Unanswerable

Question: During who's reign was the area becoming more Sumerian than Semitic?
Answer: Unanswerable

Question: Where was the power of Akkadian speaking Semites declining?
Answer: Unanswerable

Question: What people where leaving the are  to form other powers?
Answer: Unanswerable

Question: Who dominated northern Mesopotamia in the 2100's?
Answer: Unanswerable