America has 3,000 counties because early government had to be reachable by horse. Courthouses multiplied as communities grew, leaving a map frozen in history.
The Transcontinental Railroad united America in the 1860s, linking East and West with iron rails, transforming travel, trade, and the nation's destiny forever.
The Civil War reshaped America, ending slavery, solidifying federal power, and sparking Reconstruction, while leaving lasting social and economic impacts.
The Lewis and Clark Expedition, led by Meriwether Lewis and William Clark, explored the American West, mapping new territories and documenting flora and fauna.
Discover why the U.S., Liberia, and Myanmar resist adopting the metric system, and explore the history, reasons, and unique circumstances behind their choices.
Veterans Day, observed on Nov 11, honors all U.S. military veterans. Initially, Armistice Day, marking WWI's end, it now celebrates veterans from all wars.