The Fall of the Roman Empire

Rome didn't fall in a single dramatic day. It unraveled slowly as a system that had grown too big to defend or pay for. At its peak the empire stretched from Britain to the Middle East. Defending that border needed a massive army, and paying that army needed heavy taxes and a steady supply of conquered wealth. Once expansion stopped, the money stopped, but the costs did not. To cope, emperors debased the currency (less silver per coin), which caused inflation and eroded trust. Political instability meant emperors were made and murdered by their own troops. Meanwhile, pressured groups on the frontier pushed in. By 476 CE, the western half had fragmented into local kingdoms while the eastern half (Byzantium) carried on for another thousand years. The throughline: overextension plus financial strain plus political instability, not one villain.