Prior to Arsenal in 2004 which is the only other team to win the League (Div 1) without a defeat?
Arsenal F.C. of 8.5. Arsenal hold the record for the longest run of unbeaten League matches (49 between May 2003 and October 2004). This included all 38 matches of their title-winning 2003–04 season, when Arsenal became only the second club to finish a top-flight campaign unbeaten, after Preston North End (who played only 22 matches) in 1888–89. They also hold the record for the longest top flight win streak. Arsenal set a Champions League record during the 2005–06 season by going ten matches without conceding a goal, beating the previous best of seven set by A.C. Milan. They went a record total
2004–05 Arsenal F.C. season ended the weekend of 6 September 2004 top of the league table, two points clear of second place Chelsea. The league champions dropped their first points of the season at home to Bolton Wanderers. At the City of Manchester Stadium on 25 September 2004, a goal by Cole earned Arsenal a 1–0 win against Manchester City. Journalist Russell Thomas, writing for "The Guardian", commented on Arsenal's fatigue during the second half and opined that the team needed to keep their focus against sterner opposition. Arsenal beat Charlton Athletic in early October to extend their unbeaten run to 48 league matches.