International trade

4

Economic conditions

3

Communism

2

Constitutions

2

Espionage

2

Fascism

2

Agriculture

1

Armed forces

1

Central government

1

Conferences

1

Freedom of religion

1

General strike (1926)

1

International relations

1

International solidarity

1

Interviews

1

Lectures, sermons and speeches

1

Manufacturing

1

Moscow Trials

1

Peace issues

1

Public meetings and rallies

1

Russian Revolution (1917)

1

Socialism

1

Young people

1

1927

4

1936

3

1924

1

1926

1

1928

1

1935

1

1941

1