Moscow

The first Russian reference to Moscow dates from 1147 when Yuri Dolgoruki called upon the prince of the Novgorod Republic to "come to me, brother, to Moscow." Nine years later, in 1156, Prince Yuri Dolgoruki of Rostov ordered the construction of a wooden wall, which had to be rebuilt multiple times, to surround the emerging city. After the sacking of 1237-1238, when the Mongol-Tatars burned the city to the ground and killed its inhabitants, Moscow recovered and became the capital of an independent principality in 1327. Its favorable position on the headwaters of the Volga River contributed to steady expansion. Moscow developed into a stable and prosperous principality for many years and attracted a large number of refugees from across Russia.