 It spread primarily in the northern regions of Russia and was very popular from 16th to 19th century.It is still to this day an important feature of Russian dance ensembles and folk culture and inspired the Kokoshnik style of architecture.Historically a kokoshnik is a headdress worn by married women, though maidens also wore a headdress very similar to a kokoshnik, but open in the back, named a "povyazka".