Watch: Serge Gnabry on his Matchday 14 double
Leipzig's 4-0 reverse against Hoffenheim was their heaviest ever Bundesliga defeat. It was also Hoffenheim's biggest win of the season.
Kevin-Prince Boateng scored his first goal against Hertha Berlin in his fourth outing against his former club. He has never lost against the Old Lady (three wins, one draw).
Watch: Kevin Volland on Leverkusen's impressive run of form
Dortmund are now winless in seven Bundesliga matches - their longest barren run for three years.
Robert Lewandowski became the first Bayern player to score in seven consecutive home games at the start of a season, with his penalty against Hannover.
In replacing the injured Maximilian Philipp after eight minutes, Dortmund's Andre Schürrle became the earliest Bundesliga substitute of the season.
Leverkusen are enjoying the longest unbeaten run of any current Bundesliga team (nine matches - four wins, five draws).
The last nine teams to have beaten Bayern - as Gladbach did on Matchday 13 - have failed to win their next match (two draws, seven defeats).
Bayern registered a season-high 30 efforts on goal against Hannover.
Bayern have won their last 30 Bundesliga meetings with promoted sides. They last lost to a promoted outfit in 2010 (Kaiserslautern).
Watch: Arturo Vidal reflects on Bayern's Matchday 14 win
Wendell's sending off was Leverkusen's 72nd red card in the Bundesliga - a joint-high shared with Stuttgart.
Bayern conceded from a corner for the first time in 96 matches on Matchday 14, a run that dates back to February 2015.
Cologne goalkeeper Timo Horn made his 100th Bundesliga appearance.
Franck Ribery became Bayern's leading non-German appearance maker in the Bundesliga (235), after his late cameo against Hannover.