No one is denying that Slavs were present in Kosovo. When Skanderbeg was halted by Brankovic to join Hunyad, he carried out reprisals in Kosovo field out of spite after learning that Turks had won so it logical to assume that Serbs lived there. But Kosovo then was known as Kosovo field, which was just place where skirmishes happened, not a province, which comprised a much smaller territory than Kosovo now which includes Dukagjin. Kosovo as a province was formed by Ottomans for administrative purposes and Skopje was the center, go figure, and included regions which had nothing to do with the famous Kosovo field. Regarding ethnic composition, speaking frankly, the scale changed back to Albanians' favour after the cleansing of Albanians around Nish region in 1876-84 period. A city which bears an Albanian toponym, go figure. Our government in 1912 asked to include the western half of Kosovo as part of newly established Albanian state, along with Diber and some parts of Macedonia. In middle ages Albanians mostly occupied the mountains and we were oftenly confused with Vlachs. Slavs are more agricultural society, but of course, this is generalizing and not 100% true. We should all admit that masses lived next to each other then, and that newly formed kingdom of Serbia started a modern feud with Albanians by expelling after annexing territories. I am aware of Bushatllinjs sending armies to crush Serbian revolutions, but the scale of the events is different, plus it is not like Bushatllinjs represented Albanians in those regions, our pashaliks fought against each other most of the time. Serbia embraced nationalism much sooner than us and had the chance to influence us, but the kingdom chose to anathemize us.