History Day - Progressive to New Eras (1900-1929)

Eras do not always fit neatly into date ranges - and some topics will straddle the date ranges of our guides.

See other guides too. See separate guide for World War I

These are a few examples.

Please be advised that some of these resources--particularly those created in previous eras--contain descriptions for ancestral, racial, ethnic, and gender identity that may be offensive or harmful to individuals investigating these records, and are considered inappropriate to use in modern times. The descriptions and treatment of historically marginalized groups, women, and animals may be upsetting. Also, please note that inclusion in this subject guide does not necessarily constitute endorsement of the views therein--we encourage investigators to use their own judgment when evaluating books, websites, articles, documents, and other resources.