Okay guys I have to write an essay of compare and contrast between river valley cilivvizations! Sumer, Indus valley, Egypt, And china. Can you give me a few differences of all them!
There has been an "Assay Office" at Sheffield in England since 1773 when local silversmiths won the right from Parliament to assay silver in Sheffield. The 1773 Act of Parliament appointed 30 local men as 'Guardians of the Standard of Wrought Plate in the Town of Sheffield' to supervise the work of the Office
