The capital's site resulted from geographic, historical, and political compromises:
Strategic position on the Potomac River at the fall line (Piedmont meets Coastal Plain), enabling canal construction to bypass rapids and providing transport, water, and power.
Founded 1790 as permanent capital. Compromise between Northern and Southern states led to a new federal district on land donated by Maryland and Virginia.
Located in a swing region, making it a bellwether for national campaigns and a neutral ground for governance.