During the 1906–07 Scottish football season, their 19th season of competitive football, Celtic competed in the Scottish First Division and the Scottish Cup, winning both competitions.
[1] This was their third League title in a row, the first time Cetlic achieved that feature, as well as the first ever League and Cup double for the Glasgow team.
In fact, it was the first time a Scottish team managed to achieve the domestic double in the 17 years the Scottish Cup and the League had coexisted so far.
1906 was the first year that Jimmy Hay captained Celtic.
The Celtic team did not concede a goal in any of their first six league matches, a record which stood until beaten by Rangers 114 years later, at the start of the 2020–21 Scottish Premiership season.