I love these statements. How did they get to Scandinavia, migrate down from the North Pole where they spontaniously sprang into being from ice crystals? 
Also, the author seems a bit perplexed about the Goths migrating to "north of the Black Sea". I suspect it's mostly a matter of confusion in the dating of some Celtic finds that has their direction of travel reversed. We know the Celts initially came FROM the region of the Black Sea and the Caucasus Mountains many hundreds of years earlier. That is why they are called "Caucasians".
"As in the Former Han, a strong centralized government was restored and powerful reforms were instituted in the early years of the Later Han; these reforms led to an astonishing recovery of a population that had been devastated by war and famine. As in the former Han, this period of creative reform and restoration was immediately followed by an aggressive military expansion. In 50 AD, the Later Han government allied itself with some Hsiung Nu tribes and, forty years later, marched across the Gobi desert and attacked the northern Hsiung Nu. So effective was this campaign that it provoked massive migrations of Hsiung Nu west into central Asia and north into Russia; these migrations eventually pushed the Hsiung Nu all the way to Europe and finally Rome: these nomads were known to the West as the "Huns." The military expansion of the Chinese empire would push the Chinese all the way to the Caspian Sea; this mind-boggling control of large parts of inner Asia established the greatest trade route in the ancient world: the Silk Road."
I love these statements. How did they get to Scandinavia, migrate down from the North Pole where they spontaniously sprang into being from ice crystals?