With their win last week against the Philadelphia Eagles, the New England Patriots guaranteed a 19th straight winning record and closed in on a Dallas Cowboys' mark that is among the most treasured in franchise history.
From 1966 to 1985, the Cowboys never had a losing record, a 20-year run that is an NFL record. Dallas won 13 division titles and played in two NFL Championship Games, 10 NFC Championship Games and five Super Bowls -- winning twice. They finished first or second in their division 18 times. During the two seasons they did not make the playoffs, the Cowboys finished 8-6 (1974) and 9-7 (1984).