dual distinction? Does it mean "two distinctions" or "two features" ?

Context:

President Harrison has the dual distinction among all the Presidents of giving the longest inaugural speech and of serving the shortest term of office. Known to the public as "Old Tippecanoe," the former general of the Indian campaigns delivered an hour-and-forty-five-minute speech in a snowstorm. The oath of office was administered on the East Portico of the Capitol by Chief Justice Roger Taney. The 68-year-old President stood outside for the entire proceeding, greeted crowds of well-wishers at the White House later that day, and attended several celebrations that evening. One month later he died of pneumonia.