volga bulgaria: *celebrates the acceptance of islam in his country every year on may 21nd*

danube bulgaria: it's not fair!

danube bulgaria: why does that nerd know the exact day on which his ruler accepted islam

danube bulgaria: I DON'T KNOW EXACTLY WHEN BORIS THE FIRST ACCEPTED CHRISTIANITY

danube bulgaria: ALL I KNOW IS THAT IT WAS SOMETIME IN 864

danube bulgaria: IT'S NOT FAIIIIIIIIIIIIR

AN:

on the 21st of may 922, volga bulgaria's ruler, elteber almush, accepted islam

nobody knows when exactly knyaz boris accepted christianity (it was done in secret), all that's known is that it was sometime in the beginning of 864