Elam was lost, northern Mesopotamia and Syria moved away from Akkadian rule. The Gutians then invaded Mesopotamia and put an end to Akkadian rule entirely. They then governed Sumer and Akkad. They only ruled for about 100 years, then Ur-Nammu, the ruler of Ur, took over. These are examples of outside influences, these people come from other realms and dominate each other, in a sense influencing new values, new culture and new ways of life. Ur-Nammu, still ruler of the Ur Empire, died in battle. His son, Shulgi, then ascended the throne. Manufacturing centers were established throughout the kingdom to produce a wide range of goods. The kings of Ur also set up a network of allied states. Shulgi dies and the kingdom lasts for about 20 years afterward. The kingdom collapsed and Akkad and Sumer separated and claimed their independence. Elam then sacks the city and takes control of Ur. This is another external