Columbia subject headings:
Chronologies.
Socialism--Japan--History--19th century--Chronology.
Socialism--Japan--History--20th century--Chronology.
Harvard subject headings:
Socialism--Japan--History--19th century--Chronology.
Socialism--Japan--History--20th century--Chronology.
Princeton subject headings:
Socialism--Japan--History--Meiji period, 1868-1912--Chronology.
Socialism--Japan--History--Taishō period, 1912-1926--Chronology.