The History of the World: Napoleon defeated at Waterloo
In the end, though the dynasty Napoleon hoped to found and the empire he set up both proved ephemeral, his work was of great importance. He unlocked reserves of energy in other countries just as the Revolution had unlocked them in France, and afterwards they could never be quite shut up again. He ensured the legacy of the Revolution its maximum effect, and this was his greatest achievement, whether he desired it or not.