The Huns and the Mongols were two distinct nomadic groups that played significant roles in history, but they existed in different time periods. The Huns emerged in Europe during the late 4th and early 5th centuries, around 375 AD, when they began to invade and settle in territories belonging to the Roman Empire. They were known for their fierce horses and innovative tactics in warfare.
In contrast, the Mongols rose to prominence much later, in the 13th century, under the leadership of Genghis Khan, who united the Mongolian tribes and expanded their empire across Asia and into Europe. This period began around the year 1206 AD, which is almost 800 years after the peak of the Huns.
In summary, the Huns did not come after the Mongols; rather, they existed centuries before. The time gap between the two groups highlights the diverse history of nomadic peoples and their impacts on the civilizations surrounding them.