(чърты и резы)strokes and incisions is not old church slavonic. this is a simplified writing for people. old slavic lang. got several writings – t’ragi, runitsa, bukvitsa,glagolitsa, strokes and incisions and knot writing. Kirill and Methodius not made Russian alfabet. they are cut 4 letters off from bukvitsa to make it possible to translate bible from Greek lang.