The document traces the history of Audi from its founding in 1899 as the Horch company through its evolution over the 20th century. It highlights several key events, including August Horch founding the company and building its first car in 1901 (Horch), the company being renamed Audi in 1910 after a trademark dispute, Audi introducing left-hand drive in 1921, the merger of four car companies including Audi, DKW, Horch and Wanderer to form Auto Union in 1932, Volkswagen acquiring Auto Union in 1964, and the introduction of the iconic Audi 100 and Quattro models in the late 1960s and 1980s that helped establish Audi as a leader in automotive technology and performance.