One of Allportâs stories is always mentioned in his biographies: When he was 22, he traveled to Vienna. He had arranged to meet with the great Sigmund Freud! When he arrived in Freudâs office, Freud simply sat and waited for Gordon to begin.
In 500 BC, Darius I the Great started an extensive road system for Persia (Iran), including the famous Royal Road which was one of the finest highways of its time. The road was used even after the Roman times. Because of the road's superior quality, mail couriers could travel 2,699 kilometres (1,677 mi) in seven days.
Samuel Pennock went on to streamline the scraper idea and invented and patented the first four wheeled road scraper which was dubbed 'the American Champion' in June of 1877. In 1928 the graders became truly motorised when the tractor was moved to the back and built in.