Paris under Napoleon Each of the twelve arrondissements had its own mayor, but their power was limited to enforcing the decrees of Napoleon's ministers. After he crowned himself Emperor on December 2, 1804, Napoleon began a series of projects to make Paris into an imperial capital to rival ancient Rome. He built monuments to French military glory, including the Arc de Triomphe du Carrousel, the column in Place Vendôme, and the future church of the Madeleine, intended as a temple to military heroes; and began the Arc de Triomphe. To improve the circulation of traffic in central Paris, he built a wide new
Napoleon III officially ended, replaced by the Second French Empire. Prince-President Louis-Napoleon Bonaparte became Napoleon III, Emperor of the French. His regnal name treats Napoleon II, who never actually ruled, as a true Emperor (he had been briefly recognized as emperor from 22 June to 7 July 1815). The 1852 constitution was retained; it concentrated so much power in Napoleon's hands that the only substantive change was to replace the word "president" with the word "emperor." One of the first priorities of Napoleon III was the modernization of the French economy, which had fallen far behind that of the United Kingdom and