The term 'Early Invader of Europe' can be summarized as the Tatars, a nomadic people originating from Central Asia. The Tatars invaded Europe in the 13th century and established the Golden Horde, a powerful empire that stretched from the Black Sea to the Baltic Sea. They were known for their military prowess and their ability to quickly adapt to new environments. The Tatars were eventually defeated by the Russians in the 15th century, but their legacy remains in the form of the modern-day TATAR people.