Barcelona's 3-0 victory away to Hercules on Saturday was their 15th on the trot and assured them of another entry in the history books as they equalled the La Liga record set by Real Madrid in the 1960-61 season.
Pep Guardiola's side rub shoulders with the famous Real Madrid team which included Alfredo di Stefano, who had helped them to win the first five European Cups between 1956 and 1960.
"It's an immense honour to have 15 consecutive victories and to equal the record achieved by the Real Madrid of Di Stefano," Barca coach Pep Guardiola told reporters.
"I am sure some team will equal it or pass it one day but it is something no one has managed for 50 years."
Barca started their run with a 2-1 victory at home to Valencia on Oct. 16 and have gone on to rattle in 57 goals while conceding only six in their 15 matches.
Their closest rivals in the league, arch-rivals Real, were hammered 5-0 at the Nou Camp in November, and third-placed Villarreal fell 3-1.
They pass the club record of 14 wins set by Frank Rijkaard's team in the 2005-6 season which went on to win a La Liga and Champions League double.
Barca moved seven clear at the top of the standings with 58 points from 21 matches, though Jose Mourinho's Real can cut the deficit back to four points if they win at Osasuna on Sunday.
The champions have a King's Cup semi-final second leg away to Almeria on Wednesday when they defend a 5-0 advantage, and then have the chance to set a new La Liga win record at home to Atletico Madrid next weekend.