From 1915-16 to 1920-21 the Scottish League operated only one
division.
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1915-16
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20 teams
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Aberdeen, Airdrieonians, Ayr United, Celtic, Clyde, Dumbarton, Dundee,
Falkirk, Hamilton Academical, Heart of Midlothian, Hibernian, Kilmarnock, Morton,
Motherwell, Partick Thistle, Queen's Park, Raith Rovers, Rangers, St Mirren, Third
Lanark
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1916-17
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No changes
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1917-18
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18 teams
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In
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Out
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Clydebank
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Aberdeen
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Dundee
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Raith Rovers
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1918-19
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No changes
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1919-20
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22 teams
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In
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Out
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Aberdeen
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Albion Rovers
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Dundee
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Raith Rovers
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1920-21
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No changes
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1921–22
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2 divisions, 42 teams
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In
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Out
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Alloa Athletic
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Abercorn
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Arbroath
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Arthurlie
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Armadale
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Leith Athletic
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Bathgate
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Bo'ness
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Broxburn
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Clackmannan
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East Fife
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Forfar Athletic
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King's Park
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Stenhousemuir
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1922-23
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2 divisions, 40 teams
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In
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Out
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Dundee Hibernian
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1923-24
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3 divisions, 56 teams
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In
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Out
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Arthurlie
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Beith
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Dykehead
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Dundee United
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Dumbarton Harp
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Galston
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Mid-Annandale
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Montrose
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Nithsdale Wanderers
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Brechin City
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Helensburgh
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Peebles Rovers
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Queen of the South
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Royal Albert
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Solway Star
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1924-25
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3 divisions, 56 teams
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In
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Out
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Leith Athletic
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Dumbarton Harp
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1925–26
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3 divisions, 56 teams
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No changes
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1926-27
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2 divisions, 40 teams
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In
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Out
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Beith
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Brechin City
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Clackmannan
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Dykehead
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Galston
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Helensburgh
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Johnstone
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Leith Athletic
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Lochgelly United
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Mid Annandale
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Montrose
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Nithsdale Wanderers
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Peebles Rovers
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Royal Albert
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Solway Star
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Vale of Leven
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1927-28
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2 divisions, 40 teams
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No changes
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1928-29
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2 divisions, 40 teams
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No changes
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1929-30
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2 divisions, 40 teams
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In
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Out
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Brechin City
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Arthurlie
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Montrose
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Bathgate
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1930-31
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2 divisions, 40 teams
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No changes
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1931-32
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2 divisions, 40 teams
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In
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Out
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Edinburgh City
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Clydebank
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1932-33
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2 divisions, 40 teams
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No changes
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1933–34
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2 divisions, 38 teams
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In
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Out
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Armadale
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Bo'ness
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1934-35
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2 divisions, 38 teams
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No changes
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1935-36
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2 divisions, 38 teams
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No changes
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1936-37
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2 divisions, 38 teams
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No changes
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