i said some galician slavs because various people came in waves to podkarpatska from the first migrations to 1337. from vlachs, normans, various other slavs, hungarians and of course, slavs from galicia. the diversity of the groups which settled here contributed to the separation of modern rusyns from the rest of the eastern slavs, and those divides were already distinct by the 14th century, on top of the already settled white croats.I don't fully buy the idea that the Slavs there are just direct continuation of the white croats or whoever, any such claim needs further argumentation. East Slavs were not born as Orthodox Rus people, they became so during the late 9th and mid 10th century and if the Rusyn took part in that change despite being part of Hungary it should leads us to question how that process happened.
What makes you think that only "some" Slavs came? What exact evidence is there of a continuous independent Rusyn community? Like to me I can't see how we can be sure the Rusyn community was not formed by short distance migrations from Galicia(just like Occitan spread to Catalonia and many other similar examples) during the high middle ages preceding 1337, which as you mentioned did happen.
so what i want to say is, while migrations of eastern slavs from neighboring regions did play a part in solidifying slavic identity amongst rusyns, they were still just one of the many diverse influences on the rusyn people, and by 1337, this melting pot of cultures separated by geography and politics, was distinct enough to be different from other eastern slavic cultures. and as i said, only the confusing nature surrounding the names of eastern slavs throughout history is the reason why this problem even exists.
- 1