The rococo impulse went underground during the late eighteenth and early nineteenth centuries, when neoclassicism prevailed, then resurfaced in England under the flamboyant Prince Regent, later George IV, and in France during the Second Empire (1852–70). Rococo’s most significant later interpretation occurred internationally from about 1880 to 1915, when designers found inspiration in the natural flow of the rococo aesthetic for a new design concept known as Art Nouveau.