What are the achievement and contributions of the river valley civilization

The major achievement and contributions of river valley civilization is that introduction of agriculture which gave us the Neolithic period. And also people started settling near water. Moreover, people started exploring other luxury goods as they had sufficient food like in China they invented silk (an expensive luxury good)

planning of cities jewelry pottery Sanskrit religious art temples paintings sculptures stories plays poetry metal lurgy-the art of working with metal knew how to make alloysHindu-Arabic Numerals (still in use today) medicine inoculation-putting a small dose of a virus into someone to build a defense to disease astronomy