Jan Kubisz
... that the poem Płyniesz Olzo po dolinie, by Polish poet and educator Jan Kubisz, became the unofficial anthem of Cieszyn Silesia?
... that the poem <i id="mwDFY"><a href="./Płyniesz_Olzo_po_dolinie" id="mwDFc" rel="mw:WikiLink" title="Płyniesz Olzo po dolinie">Płyniesz Olzo po dolinie</a></i>, by <a href="./Polish_literature" id="mwDFg" rel="mw:WikiLink" title="Polish literature">Polish poet</a> and educator <b id="mwDFk"><a href="./Jan_Kubisz" id="mwDFo" rel="mw:WikiLink" title="Jan Kubisz">Jan Kubisz</a></b>, became the unofficial anthem of <a href="./Cieszyn_Silesia" id="mwDFs" rel="mw:WikiLink" title="Cieszyn Silesia">Cieszyn Silesia</a>?