Timeline : Huns* Mounted archers
* 200BC: Mao-tun unites the Huns (Xiongnu, Hsiung-nu) in Central Asia around Lake Bajkal and southeastern Mongolia, with capital in Longcheng (near Ulan Bator)
* 176BC: the Hsiung-nu attack eastern China (the Tocharians)
* 140BC: Han emperor Wu-ti conducts campaigns against the Hsiung-nu
* 121BC: China defeats the Hsiung-nu
* 51 BC: the Hsiung-nu split into two hordes, with the eastern (southern) horde subject to China
* 50 BC: the western Huns expand to the Volga
* 48 AD: the Hsiung-nu empire is defeated by the Han and dissolves
* 337AD: Constantine dies and the Roman empire is divided in eastern
(Costantinople) and western (Rome) empire
* 350AD: Hunnic invasion of South-eastern Europe
* 376AD: Huns, led by Uldin, reach the Black Sea and the Danube, conquering the eastern Goths
* 395AD: the Huns raid Armenia
* 408AD: Uldin crosses the Danube but is defeated by Rome
* 408AD: the Roman patrician Aetius is taken prisoner by the Huns
* 412AD: the new Hun leader Donatus is murdered by the Romans and is succeeded by Charato (Karaton), who unifies all Western Huns
* 425AD: Huns are hired by a western Roman general (Aetius) to fight in Italy during a political crisis
* 430AD: the new Hun leader Rugida (Rua) signs a peace treaty with the eastern Roman empire (annual salary in return for peace)
* 433AD: Rugida (Rua) signs a treaty with the western Roman empire that surrenders Pannonia to the Huns in exchange for military help
* 433AD: Aetius becomes the de-facto ruler of the western Roman empire
* 434AD: Rugida (Rua) dies and is succeeded by Attila (a friend of Aetius) and his brother Bleda
* 435AD: Aetius employs Huns to fight Vandals and Franks
* 436AD: Aetius and the Huns destroy the Burgundians
* 439AD: Attila helps Aetius
* 441AD: the Huns raid eastern Roman outposts along the Danube
* 441AD: the Huns sign a peace treaty with the eastern Roman empire
* 445AD: by murdering his brother, Attila becomes sole leader of the Huns, who are centered in Hungary (Pannonia)
* 447AD: the Huns and Valamer's Goths attack the eastern Roman empire in the Balkans and Attila reaches the walls of Constantinople
* 449AD: Attila signs a new treaty with the eastern Roman empire
* 450AD: the new emperor Marcian reneges on the Hun-Roman treaty
* 451AD: Huns travel from Pannonia and attack Gaul but are defeated by Aetius and the Visigoths
* 452AD: Huns cross the Alps but renounce attacking Italy for fear of the plague and Attila concludes peace with Pope Leo
* 453AD: Attila dies
* 454AD: Goths expel Huns from Pannonia
* 454AD: Aetius is murdered by his emperor
* 461AD: the Huns besiege Paris
* 469AD: the Hun king Dengizik dies and the Huns disappear
source :
http://www.scaruffi.com/politics/barbars.html