 Complete the following phrase:  Altenberg raced bobsleigh as early as 1908 on a natural track going downhill. By the late 1970s, the East Germans were already successful in luge, and had increasing success in bobsleigh. This included a total of six Winter Olympic medals in bobsleigh in 1976 and 1980, along with five world bobsleigh championship medals between 1977 and 