Rouran Khaganate in the context of "Turkic migration"

Various nomadic empires, including the Xiongnu (3rd century BC–1st century AD), the Xianbei state (c. AD 93–234), the Rouran Khaganate (330–555), the First (552–603) and Second Turkic Khaganates (682–744) and others, ruled the area of present-day Mongolia. The Khitan people, who used a para-Mongolic language, founded an empire known as the Liao dynasty (916–1125), and ruled Mongolia and portions of North China, northern Korea, and the present-day Russian Far East.

In 1206, Genghis Khan was able to unite the Mongol tribes, forging them into a fighting force which went on to establish the largest contiguous empire in world history, the Mongol Empire (1206–1368). After the fragmentation of the Mongol Empire, Mongolia came to be ruled by the Yuan dynasty (1271–1368) based in Khanbaliq (modern Beijing) and administered as part of the Lingbei Province. Buddhism in Mongolia began with the Yuan emperors' conversion to and dissemination of Tibetan Buddhism.

The Göktürks (Old Turkic: 𐱅𐰇𐰼𐰜:𐰉𐰆𐰑𐰣, romanized: Türük Bodun; Chinese: 突厥; pinyin: Tūjué; Wade–Giles: T'u-chüeh), also known as Türks, Celestial Turks or Blue Turks, were a Turkic people in medieval Inner Asia. The Göktürks, under the leadership of Bumin Qaghan (d. 552) and his sons, succeeded the Rouran Khaganate as the main power in the region and established the First Turkic Khaganate, one of several nomadic dynasties that would shape the future geolocation, culture, and dominant beliefs of Turkic peoples.

The Turkic migrations were the spread of Turkic tribes and Turkic languages across Eurasia between the 4th and 11th centuries. In the 6th century, the Göktürks overthrew the Rouran Khaganate in what is now Mongolia and expanded in all directions, spreading Turkic culture throughout the Eurasian steppes. Although Göktürk empires came to an end in the 8th century, they were succeeded by numerous Turkic empires such as the Uyghur Khaganate, Kara-Khanid Khanate, Khazars, and the Cumans. Some Turks eventually settled down into sedentary societies such as the Qocho and Ganzhou Uyghurs. The Seljuq dynasty invaded Anatolia starting in the 11th century, resulting in permanent Turkic settlement and presence there. Modern nations with large Turkic populations include Kyrgyzstan, Turkmenistan, Turkey, Azerbaijan, Uzbekistan, and Kazakhstan, and Turkic populations also exist within other nations, such as Chuvashia, Bashkortostan, Tatarstan and the Sakha Republic of Siberia in Russia, Northern Cyprus, the Crimean Tatars, the Kazakhs in Mongolia, the Uyghurs in China, and the Azeris in Iran.

The First Turkic Khaganate, also referred to as the First Turkic Empire, the Turkic Khaganate or the Göktürk Khaganate, was a Turkic khaganate established by the Ashina clan of the Göktürks in medieval Inner Asia under the leadership of Bumin Qaghan (d. 552) and his brother Istämi. The First Turkic Khaganate succeeded the Rouran Khaganate as the hegemonic power of the Mongolian Plateau and rapidly expanded their territories in Central Asia. The khaganate became the first Central Asian transcontinental empire from Manchuria to the Black Sea.

Although the Göktürks spoke a Siberian Turkic language, the direct predecessor to the Orkhon Turkic of the Second Turkic Khaganate, the First Khaganate's early official texts and coins were written in Sogdian. It was the first Turkic state to use the name Türk politically. The Old Turkic script was invented in the first half of the sixth century.

The proto-Mongols emerged from an area that had been inhabited by humans as far back as 45,000 years ago during the Upper Paleolithic. The people there went through the Bronze and Iron Ages, forming tribal alliances, peopling, and coming into conflict with early polities in the Central Plain.

The proto-Mongols formed various tribal regimes that fought against one another for supremacy, such as the Rouran Khaganate (330–555) until it was defeated by the Göktürks, who founded the First Turkic Khaganate (552–744), which in turn was subdued by the growing strength of the Tang dynasty. The destruction of the Uyghur Khaganate (744–848) by the Yenisei Kyrgyz resulted in the end of Turkic dominance on the Mongolian Plateau.

Bumin Qaghan (Old Turkic: 𐰉𐰆𐰢𐰣:𐰴𐰍𐰣, romanized: Bumïn qaɣan, died 552 AD) was the founder of the First Turkic Khaganate. His regnal title was Illig Qaghan (Chinese: 伊利可汗, romanized: Yīlì Kèhán, Wade–Giles: i-li k'o-han). He was the eldest son of Ashina Tuwu (吐務 / 吐务). He was the chieftain of the Turks under the sovereignty of the Rouran Khaganate. He is also mentioned as Tumen (土門, 吐門, commander of ten thousand) of the Rouran Khaganate.

The Ashina (Chinese: 阿史那; pinyin: Āshǐnà; Wade–Giles: A-shih-na; Middle Chinese: (Guangyun) [ʔɑʃi̯ə˥nɑ˩]) were a Turkic tribe and the ruling dynasty of the Göktürks. They rose to prominence in the mid-6th century when the leader, Bumin Qaghan (died 552), revolted against the Rouran Khaganate. The two main branches of the family, one descended from Bumin and the other from his brother Istämi, ruled over the eastern and western parts of the Göktürk confederation, respectively, forming the First Turkic Khaganate (552–603).