Russian. What did we call them before?

To be precise, we used to call the Russian generation "Luo Cha State", and there is a story about Luo Cha State in a strange story from a strange studio. In addition, Jin Yong's Duke of Lushan is also described in detail, such as Wei Xiaobao meeting the princess of Luo Cha and signing the Treaty of Nebuchadnezzar Chu, which basically conforms to the historical background at that time, except for the fictional character (Wei Xiaobao).