Flavius Josephus, The Wars of the Jews
William Whiston, A.M., Ed.

[89] At the very same time with the forementioned revolt of the Germans did the bold attempt of the Scythians against the Romans occur; for those Scythians who are called Sarmatians, being a very numerous people, transported themselves over the Danube into Mysia, without being perceived; after which, by their violence, and entirely unexpected assault, they slew a great many of the Romans that guarded the frontiers; and as the consular legate Fonteius Agrippa came to meet them, and fought courageously against them, he was slain by them. They then overran all the region that had been subject to him, tearing and rending every thing that fell in their way. But when Vespasian was informed of what had happened, and how Mysia was laid waste, he sent away Rubrius Gallus to punish these Sarmatians; by whose means many of them perished in the battles he fought against them, and that part which escaped fled with fear to their own country. So when this general had put an end to the war, he provided for the future security of the country also; for he placed more and more numerous garrisons in the place, till he made it altogether impossible for the barbarians to pass over the river any more. And thus had this war in Mysia a sudden conclusion.

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