Names of national and international organizations, movements, alliances, and members of political parties are capitalized: Republican Party, Progressive Movement.

Should Progressive Era be capitalized?

However, some periods are traditionally capitalized, especially to avoid confusion with common usage: the Common Era, the Counter-Reformation, the Dark Ages, the Enlightenment, the Gay Nineties, the Gilded Age, the Jazz Age, the Middle Ages, the Progressive Era, the Reformation, the Renaissance, the Restoration, the ...

Do you capitalize movements?

Capitalize the generally accepted names of historical periods and movements. Capitalize the name of a specific art or architectural movement, group, or style (the Impressionism of Monet). Lowercase such a term when it is used in a general sense (John Manley's paintings are impressionistic in manner).