History Day - by Time Periods

It was requested that resources be presented by time period as well as by broad subjects. Not all topics fit nicely into time periods, but we will attempt to organize links to resources by time periods.

See also:

Time Periods as set in the Connecticut History Day 2022-2023 Topic Guide:

First Encounters and the Colonial Era (pre-1775)
Revolutionary War and a New Nation (1775-1815)
The Era of Reform (1815-1859)
Civil War and Reconstruction (1860-1877)
Rise of Industrial America (1878-1900)
Progressive to New Eras (1900-1929)
Great Depression and World War II (1929-1945)
Post War United States (1945-1968)
Contemporary United States (1969-present)

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.