Which country is the language a poem written and sung on a holiday and created in the 13th century from? 
Ma'oz Tzur: "Ma'oz Tzur" (Hebrew: מעוז צור‎ ‎ "Māʕōz Sˤūr") is a Jewish liturgical poem or "piyyut". Ma'oz Tzur:  This Hebrew song is thought to have been written sometime in the 13th century. Hebrew language: Hebrew ( ; , "Ivrit " ] or ] ) is a Northwest Semitic language native to Israel, spoken by over 9 million people worldwide.
i don't know