Later they moved to live in the Valleys of the Onon and Kerulen rivers .
之后，他们移居至鄂嫩河和克鲁伦河。
In 1206 , he had a clan conference held on the bank of the Onon River , at which he was proclaimed the Great Khan , with the reign title of Genghis Khan .
1206年，他在鄂嫩河畔召开了家族会议并宣布自己为“大汗”，统治头衔为“成吉思汗”。
onon