The Roman Empire lasted for more than 1,000 years until the 5th century AD when it was overtaken by various “barbarian” or outside invaders.
The conquering barbarians who ended up overhauling the ancient Roman Empire comprised many tribes from Germanic Europe and hailed mainly from various areas within what are now France and Germany. Once these hordes overran Rome in 476 AD, they began spreading out elsewhere to take most of Western Europe under their leadership. The Eastern half of the empire continued on for a while before eventually meeting a similar fate 500 years later in 1453 at Constantinople.
Both halves had fallen, but not before painting an impressively long trajectory along 2,500 plus years as one of history’s great empires.