This is a Locust Year: The Periodical Cicada in Cicada Country

Illustration of the Periodical Cicada, from The American Entomologist ca. 1880 “They usually come out of their holes at night and climb trees and the stems of plants. The nymphal cases, which split on top as the insects emerge, are discarded, but...

Inoculating America: Smallpox and the American Revolution

“We shall continue the utmost Vigilance against this most dangerous Enemy,” wrote George Washington in a letter to John Hancock on the 21st of July, 1775, after receiving command of the Continental Army. Washington certainly had many dangerous enemies to consider:...

Back to School In Towamencin

A 19th century map of Towamencin Township. Locations of schools are marked with a red arrow. The Township of Towamencin was formally established in 1728; local landowners (including Edward Morgan) petitioned Philadelphia County to create the township (Montgomery...

Women of the Morgan Log House

To celebrate the centennial anniversary of the 19th Amendment, we thought we would share what we know about the women that lived at the Log House property. We know less about the women that lived here because, during the eighteenth and nineteenth centuries, men were...

Visualizing the Diaries: Tools of the Historian

Often, we think of history as being done by looking at documents and material artifacts and using them to make inferences about what happened in the past. Historians do that a lot, and it remains to be the most effective tool for learning about the past. With the rise...