What did the hittites and the Assyrians contribute to sumerian civilization

By the mid-20thcentury BCE, Sumerian Civilization had already been through a lot.It had been co-opted by the Akkadians, conquered by the Guti and ithad thrown off its invaders, and started a new Sumerian Empire withUr as its capitol. The Hittites were a warlike people, from thecity of Hattusa in Anatolia. They were big fans of chariots, whichthey used to great effect. They were also excellent metalworkers.They were also perhaps the first empire to see the value of iron.The Hittites used 9 languages within their territories. TheAkkadian language is used for communication while the Sumerianlanguage is used for literature. Despite their notoriouscharacteristics, the Assyrians built the first ever library inhistory. This library had 200,000 clay tablets. The library waslocated in the empire’s capital. They constructed beautiful andorderly roads and highways and the Assyrians introduced to theworld the first and effective postal service.