Four groups of invaders that threatened Byzantine territory included the Arab armies, who launched extensive campaigns in the 7th century; the Seljuk Turks, who defeated the Byzantines at the Battle of Manzikert in 1071; the Crusaders, particularly during the Fourth Crusade, which led to the sack of Constantinople in 1204; and the Ottoman Turks, who ultimately conquered Constantinople in 1453. Each of these groups significantly impacted the Byzantine Empire's territorial integrity and power.
Vikings
The Romans.
Art
The Seljuks or the Sufi's
Art
Vikings
Vikings, Magguars, Muslims
the french
the french
Iron Age invaders generally refer to various groups that migrated or attacked territories during the Iron Age, which began around 1200 BCE in the Near East and later in Europe. Notable groups included the Celts, who spread across Europe; the Scythians, known for their nomadic lifestyle in the Eurasian steppes; and the Germanic tribes, who invaded the Roman Empire. The term can also encompass other groups like the Huns and the Vandals, who played significant roles in the decline of Roman influence during late antiquity.
The invaders who destroyed Rome were the Barbarians :) This was history homework in St. Helena :)