Afanasy Nikitin was the first Russian to explore India, which he wound up doing in about 1466.
In history books you will find very little about his dealings with the Shuisky sisters, or Alnus Rugosa, or Das Brick, because I made them up.
Ali Qushji and Perkin Warbeck and Jami the Persian Poet were real people, who sadly never really had anything to do with Russia or Afanasy Nikitin. The Kreml, while a real place, was probably not as fun as it appears herein.
So abandon all pretence of learning about historical Russia, ye who enter here.