In the early 20th century, automobiles were made here by the DeWitt Motor Company. On February 1, 1968, Martin Luther King Jr. gave a speech at Manchester College. This was the last time he spoke at a college campus, as he was assassinated eight weeks later. Robert F. Kennedy also visited Manchester College during his 1968 presidential campaignhe, too, would be assassinated a few weeks later. Other international visitors during that same decade include Duke Ellington, Buckminster Fuller, Ralph Nader, and Ramsey Lewis (whose concert was cut short by a bomb scare).