Who were the seljuk Turks and huns and mangols?

The Seljuk Turks were a medieval Turkic empire that originated in Central Asia and expanded into the Middle East during the 11th century, playing a crucial role in the Islamic world and impacting the Crusades. The Huns were a nomadic group from Central Asia, known for their invasions of Europe in the 5th century, notably under leaders like Attila the Hun. The Mongols, originating from the steppes of Mongolia, formed one of the largest empires in history under Genghis Khan in the 13th century, renowned for their military prowess and expansive conquests across Asia and Europe. All three groups were significant in shaping the political and cultural landscapes of their respective eras.