query: When did Napoleon crown himself emperor?
passage: Coronation of Napoleon I
The coronation of Napoleon as Emperor of the French took place on Sunday December 2, 1804 (11 Frimaire, Year XIII according to the French Republican Calendar) at Notre Dame Cathedral in Paris. It marked "the instantiation of modern empire" and was a "transparently masterminded piece of modern propaganda".[1]
passage: First French Empire
The First French Empire,[1] officially the French Empire (French: Empire Français),Note 1 was the empire of Napoleon Bonaparte of France and the dominant power in much of continental Europe at the beginning of the 19th century. Although France had already established an overseas colonial empire beginning in the 17th century, the French state had remained a kingdom under the Bourbons and a republic after the Revolution. Historians refer to Napoleon's regime as the First Empire to distinguish it from the restorationist Second Empire (1852-1870) ruled by his nephew as Napoleon III.