Да, загляните в Википедию. http://ru.wikipedia.org/wiki/%D0%93%D0%BE%D0%BB%D1%83%D0%B1%D0%BA%D0%B8%D0%BD%D0%B0,_%D0%9C%D0%B0%D1%80%D0%B8%D1%8F_%D0%90%D0%BD%D0%B4%D1%80%D0%B5%D0%B5%D0%B2%D0%BD%D0%B0 и http://ru.wikipedia.org/wiki/%D0%9C%D0%B8%D1%80%D0%BE%D0%BD%D0%BE%D0%B2%D0%B0,_%D0%9C%D0%B0%D1%80%D0%B8%D1%8F_%D0%90%D0%BD%D0%B4%D1%80%D0%B5%D0%B5%D0%B2%D0%BD%D0%B0