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.
This is the first stage of the wall building and the details on how the walls were built were very scarce. When Qin Shi Huang united China under one centralized government and abolished feudal states, one of major project Qin Shi Huang did was to connect the existing walls in the north to one single continuous one.