<Table> <Tr> <Td> Early Slavs / Rus' </Td> <Td> pre-9th century </Td> </Tr> <Tr> <Td> Khazar Khaganate </Td> <Td> 7th--10th century </Td> </Tr> <Tr> <Td> Rus' Khaganate </Td> <Td> 9th century </Td> </Tr> <Tr> <Td> Volga Bulgaria </Td> <Td> 9th--13th century </Td> </Tr> <Tr> <Td> Kievan Rus' </Td> <Td> 882--1240 </Td> </Tr> <Tr> <Td> Vladimir - Suzdal </Td> <Td> 1157--1331 </Td> </Tr> <Tr> <Td> Novgorod Republic </Td> <Td> 1136--1478 </Td> </Tr> <Tr> <Td> Mongol Yoke </Td> <Td> 1240s--1480 </Td> </Tr> <Tr> <Td> Grand Duchy of Moscow </Td> <Td> 1283--1547 </Td> </Tr> <Tr> <Td> Tsardom of Russia </Td> <Td> 1547--1721 </Td> </Tr> <Tr> <Td> Russian Empire </Td> <Td> 1721--1917 </Td> </Tr> <Tr> <Td> Russian Republic </Td> <Td> 1917 </Td> </Tr> <Tr> <Td> Russian SFSR </Td> <Td> 1917--1922 </Td> </Tr> <Tr> <Td> Soviet Union </Td> <Td> 1922--1991 </Td> </Tr> <Tr> <Td> Russian Federation </Td> <Td> 1991--present </Td> </Tr> </Table> <Tr> <Td> Early Slavs / Rus' </Td> <Td> pre-9th century </Td> </Tr> <Tr> <Td> Khazar Khaganate </Td> <Td> 7th--10th century </Td> </Tr> <Tr> <Td> Rus' Khaganate </Td> <Td> 9th century </Td> </Tr>

Where did russia expand its territory the most in the 19th century