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 was the Great Wall of China bulit? The Great Wall of China was built to protect China from its enemies and invaders from the North, especially the Mongols. The Mongols were a tribal group that would regularly conduct raids into China. Despite the wall, the Mongols eventually conquered China. The Wall also kept Chinese citizens from leaving China.