For this, the Bashkirs were being obliged to pay yasak (tribute) (to start with with furs and honey, afterwards with cash). In 1573, the Bashkirs located it inconvenient to pay yasak in Kazan and requested the Russian tsar to develop a city for them on their land and ship troops https://lukasjmmll.dailyhitblog.com/35285431/top-ufabnb-secrets