Graves and Towers. The Hili (related to studying people who lived a very long time ago) Site not only provides the earliest known (event(s) or object(s) that prove something) of a farming-based village in the United Arab Emirates but also contains other (brown metal that's copper and tin) Age (3000 BCE-1300 BCE) and Iron Age (1300 BCE-300 BCE) villages, burial grounds and farming-based (basic equipment needed for a business or society to operate). 
In the early (brown metal that's copper and tin) Age, from the end of the 4th millennium 
BC, and the start of the early 3rd millennium, people 
started to become (sitting a lot) in the country of Jebel 
Hafit, especially on the eastern slopes of Oman 
Mountains. This produced the round graves of the Hafit 
culture, with their single room containing (more than two, but not a lot of) 
graves; almost 500 graves of this type have been 
identified in the Al Ain area. Although (compared to other things) rare 
because of past destroy, funeral-related offerings have been 
found in the form of pottery, small (brown metal that's copper and tin) objects, 
wrote stones and fired pottery beads. They show/tell about 
long/big sea trade relations with the south and center of 
Mesopotamia (sculpted boats). The importance of the 
the area was probably linked to its copper mines (Jebel 
Hajar, Oman).