Women had to travel a long, hard road to equality in long-distance running. The 26.2-mile distance was the least of this effort. In the 1960s, when Jacqueline Hansen began running, the longest Olympic women's race was 800 meters - less than half a mile. She grew up with the sport, running her first marathon in 1972, winning the Boston Marathon in 1973, then setting world records in 1974 (first sub-2:45 time for a woman) and 1975 (with the first sub-2:40)...