The Rouran Khaganate, the first confederation to use the title of khagan and khan for their rulers, was overthrown by a confederation of this ethnic group. For 10 points each:
[10e] Name this ethnic group which dominated Central Asia in the early sixth century CE. Later, branches of this broad ethnic group founded the Seljuk and Ottoman empires.
ANSWER: Turks [or Turkic peoples or Göktürks or Celestial Turks or Blue Turks or First Turkic Khaganate/Empire; accept Seljuk Turks or Ottoman Turks]
[10m] A book named for this dynasty records how for many generations prior to the conquest, the Turks “engaged in metal working for the Rouran”. This dynasty’s Emperor Wen supported the rise of Yami Qaghan.
ANSWER: Sui dynasty [or Suí cháo]
[10h] The Göktürks were led by this tribe and ruling dynasty. This tribe had been subjugated by the Rouran in 460, but conquered them in 552 under the leadership of Bumin Qaghan.
ANSWER: Ashina