<Ul> <Li> Principalities of Polotsk </Li> <Li> Territory of Novgorod </Li> <Li> Kievan Rus' </Li> <Li> Viatka </Li> <Li> Kama - Bulgarians </Li> <Li> Cumans or Polovtsians </Li> <Li> Kingdom of Poland </Li> <Li> Kingdom of Hungary </Li> <Li> Prussia </Li> </Ul> <Li> Principalities of Polotsk </Li> <Li> Territory of Novgorod </Li> <Li> Kievan Rus' </Li>

Identify important events in england france and the holy roman empire during the high middle ages