Ablyazov Kamil Alimovich RussiaSaratovSaratov branch of the Institute of History named after S. Mardzhani of the Academy of Sciences of the Republic of Tatarstan, 75 Moskovskaya St., Saratov 410012, Russiaably2018@mail.ru Author's articles GIS technology in the reconstruction of trade and transport system of the Golden Horde