A History of Agriculture in India v1.c19.s3.1

v1.c19.s3.1

Ox-drawn sledges were still being used about 3000 B.C. at Ur to convey royal corpses to their final resting-place. But long before that date, the sledge had been transformed by an invention that revolutionized locomotion on land. The wheel was the crowning achievement of prehistoric carpentry; it is the pre-condition of modern machinery, and, applied to transport, it converted the sledge into a cart or wagon.