When you change your own oil, you know that you are putting quality oil in your LS460 and that the filter is being changed too. Most importantly, you get a chance to look around under your LS460 for potential trouble spots.
Home / Great Wall / History / Qin Dynasty. The Great Wall of the Qin Dynasty (221BC-207 BC) was built during the reign of Emperor Qin Shi Huang, along the country's northern border to prevent the invasion of Huns. In 221BC, Emperor Qin Shi Huang unified China for the first time after annexing six states.
Why the Great Wall Was Built. In the Qin Dynasty, the First Emperor of Qin inked the northern walls to prevent invasion from northern nations. In the Han Dynasty, the emperors extended the Great Wall far into today's western China to protect Silk Road trade. Read more on the Who, When, and Why of Great Wall Construction and the 2,300 -year history of the Great Wall.