China immigrants from Chang, Chuan and Hakka, had first contacts with
the indigenous people on the island
Most of the first wave immigrants were
from the southern coast of the mainland, like Fucho, Chuancho and
Changcho. There were frequent fights and clashes between clans,
sometimes even within a clan, for the sake of territory-markings. The
indigenous people used to live on the plain; but when the Chuancho and
Changcho immigrants came, they forced the natives to move to the hills.
Later, when the Hakka immigrants came, they further pushed the natives
to move to the mountains. The mountain lands were not suited for crop
cultivations; so when the deer moved to the mountains as a result of
incessant hunting of the new plain habitants, the deer became one of the
important food sources to the natives.