Around 1000 A.D., global spread of science, technology and mathematics was changing the nature of the oldworld, but the dissemination then was, to a great extent, in the opposite direction to what we see today. Forexample, the high technology in the world of 1000 A.D. included paper and printing, the crossbow andgunpowder, the clock and the iron chain suspension bridge, the kite and the magnetic compass, the wheel barrowand the rotary fan. Each one of these examples of high technology of the world a millennium ago waswell-established and extensively used in China, and was practically unknown elsewhere. Globalization spreadthem across the world, including Europe.