According to some written sources, Moscow was founded in the year 1147 by Prince Yuri Dolgoruky, and soon it became the capital of Russia. Fortresses, bridges, churches and cathedrals were the first monuments of Russian architecture, which has been influenced by Western architecture during the reign of Catherine the Great. A large-scale construction started after the fire of Moscow in the time of Napoleon's invasion. At present, the development of industry and population growth determine the further development of the city.Despite the development of a polycentric system of the city, the historical centre retains its value as a political and cultural centre.