Why did the sumerians invent standard measurements for weight

Two characteristics of the declaration of independence include: 1)did not completely sever ties with england 2)listed grievances that occurred after the stamp act 3)expressed the idea that all men are created equal and are born with certain rights that no government can take from them 5)was adopted on july 4, 1776 this is a multiple answer question so it can be more than one of them lol