State Library-Florida
Florida Memory: Significant Documents
A great resource that features a noteworthy collection of images relating to important events in Florida history.
A&E Television
History.com: Why Isn't Puerto Rico a State?
Located about a thousand miles southeast of Florida, Puerto Rico is a Caribbean archipelago with a complex colonial history and political status. As a territory of the United States, Puerto Rico's 3.2 million residents are U.S. citizens....
Curated OER
Etc: Territorial Development of the United States, 1783 1889
A map from 1889 of North America showing the expansion in the region of the United States from the original Thirteen Colonies at the end of the Revolutionary War in 1783 to the time the map was made, around 1889, before the territories...