For this, the Bashkirs had been obliged to pay yasak (tribute) (at first with furs and honey, later with funds). In 1573, the Bashkirs observed it inconvenient to pay for yasak in Kazan and asked the Russian tsar to develop a town for them on their land and mail troops https://travisfiihg.onzeblog.com/29834405/an-unbiased-view-of-ufa