Okay, I'm REALLY spit balling here, and I know its incredibly unlikely. But, hey, why not.
The Goths, as a group, decide to flee the Danube frontier to escape the Huns. Unable to find sanctuary in the Balkans for whatever reason, they head East and are invited into Persia by the Sassanian Shah for .... reasons. Due to their Christian faith, they remain a self-contained and culturally isolated group, forever on the march, eventually coming to fill a place in Eastern society (Lets say, initially Persia and India) that is akin to the Romani people in Europe in OTL.
Over time, this group comes to be ostracized and persecuted throughout the region. This only reinforced their own unique cultural identity, but puts the group under a fair amount of pressure from secular authorities. Hoping to find a place free from oppression (or, maybe just having gain some wanderlust and wanting to explore) a small group of Goths set sail from a south Indian port. They island hop down until they come to Australia but find the land populated and the Aboriginies hostile (because sometimes First Contacts don't turn out all that well). They find themselves in New Zealand, wintering and making repairs to their small fleet and then return to India where they spread stories of an empty land on the southern borders of the world.
A few intrepid families decide "Hey, that remote land on the other side of a really dangerous journey sounds better than staying HERE!" and depart. Nothing is heard from them for a few years until a subsequent voyage discovers their small colony. Realizing that the land was fertile and safe, and facing an ever more hostile environment in India and Persia, a few more families begin to make the trip. New Zealand ends up being settled over the course of 60 years or so. Not ALL of our migratory Goths settle down in New Zealand, of course, but enough do that natural population growth takes over - and the more successful the colony is, the more migrants are willing to risk the dangerous voyage.
Okay - very, very, unlikely. But it doesn't fall into ASB-land, although the world that this tale is taking place in is going to be very very different then our own.
The Goths, as a group, decide to flee the Danube frontier to escape the Huns. Unable to find sanctuary in the Balkans for whatever reason, they head East and are invited into Persia by the Sassanian Shah for .... reasons. Due to their Christian faith, they remain a self-contained and culturally isolated group, forever on the march, eventually coming to fill a place in Eastern society (Lets say, initially Persia and India) that is akin to the Romani people in Europe in OTL.
Over time, this group comes to be ostracized and persecuted throughout the region. This only reinforced their own unique cultural identity, but puts the group under a fair amount of pressure from secular authorities. Hoping to find a place free from oppression (or, maybe just having gain some wanderlust and wanting to explore) a small group of Goths set sail from a south Indian port. They island hop down until they come to Australia but find the land populated and the Aboriginies hostile (because sometimes First Contacts don't turn out all that well). They find themselves in New Zealand, wintering and making repairs to their small fleet and then return to India where they spread stories of an empty land on the southern borders of the world.
A few intrepid families decide "Hey, that remote land on the other side of a really dangerous journey sounds better than staying HERE!" and depart. Nothing is heard from them for a few years until a subsequent voyage discovers their small colony. Realizing that the land was fertile and safe, and facing an ever more hostile environment in India and Persia, a few more families begin to make the trip. New Zealand ends up being settled over the course of 60 years or so. Not ALL of our migratory Goths settle down in New Zealand, of course, but enough do that natural population growth takes over - and the more successful the colony is, the more migrants are willing to risk the dangerous voyage.
Okay - very, very, unlikely. But it doesn't fall into ASB-land, although the world that this tale is taking place in is going to be very very different then our own.