2025 Hidden History Calendar
The Progressive’s Hidden History calendar features artwork from past magazine covers ranging from 1909 - 2024. In addition to holidays, it includes significant dates in progressive history on almost every day. Test your knowledge of progressive history. And if there’s a date missing that you think should be on the calendar, let us know and we’ll consider it for 2026!
The Progressive’s Hidden History calendar features artwork from past magazine covers ranging from 1909 - 2024. In addition to holidays, it includes significant dates in progressive history on almost every day. Test your knowledge of progressive history. And if there’s a date missing that you think should be on the calendar, let us know and we’ll consider it for 2026!
The Progressive’s Hidden History calendar features artwork from past magazine covers ranging from 1909 - 2024. In addition to holidays, it includes significant dates in progressive history on almost every day. Test your knowledge of progressive history. And if there’s a date missing that you think should be on the calendar, let us know and we’ll consider it for 2026!