Nothing is heard of Iazyges or Sarmatae after the Hunnish invasions.
This base design was discovered by the Hunnish king, but had never been revealed to the head of the embassy or to his secretary.
They succeeded in wounding, not in killing the Gothic king, whose death supervened in his one hundred and tenth year from the joint effects of his wound and fear of the Hunnish invasion.
Besides these three great foreign wars, Justinian's reign was troubled by a constant succession of border inroads, especially on the northern frontier, where the various Slavonic and Hunnish tribes who were established along the lower Danube and on the north coast of the Black Sea made frequent marauding expeditions into Thrace and Macedonia, sometimes penetrating as far as the walls of Constantinople in one direction and the Isthmus of Corinth in another.
We do not know how far northward the Hunnish power reached in the time of Attila, but the invasion of this nation was soon followed by a great westward movement of the Slays.
Through his generals Ardoburius and Aspar he waged two fairly successful wars against the Persians (421 and 441), and after the failure of one expedition (431) by means of a gigantic fleet put an end to the piracies of the Vandal Genseric. A Hunnish invasion in 408 was skilfully repelled, but from 441 the Balkan country was repeatedly overrun by the armies of Attila, whose incursions Theodosius feebly attempted to buy off with everincreasing payments of tribute.
It is true that the use of glass for windows was only gradually extending itself at the time when Roman civilization sank under the torrent of German and Hunnish barbarism, and that its employment for optical instruments was only known in a rudimentary stage; but for domestic purposes, for architectural decoration and for personal ornaments glass was unquestionably much more used than at the present day.
By the 3rd century B.C. the Sarmatae appear to have supplanted the Scyths proper in the plains of south Russia, where they remained dominant until the Gothic and Hunnish invasions.
The terror of the Hunnish invasion, in 899, further assisted the people in their progress towards freedom, for it compelled them to take arms and to fortify their city, rendering Milan more than ever independent of the feudal lords who lived in their castles in the country.
These Gurjaras appear to have entered India in connexion with the Hunnish invasions.