1. Kosovo is not ancient Albanian land
Its very name comes from the Serbian word “kos,” meaning blackbird. Its Albanian name, “Kosova,” means nothing whatsoever.
Kosovo was the heartland of medieval Serbian state and the site of the 1389 battle in which both the Serbian prince and the Ottoman sultan died, checking the Turkish expansion into the Balkans for almost 70 years. Ethnic Albanians were settled there by the Ottomans over the intervening centuries, and became a majority due to pogroms and persecution of Serbs – which began under Ottoman rule but continued under Austro-Hungarian occupation in WWI and German/Italian occupation in WWII.
Kosovo was never a political entity of any kind until 1945, when the Communist regime that reconstructed Yugoslavia after Axis occupation (with which Albanians overwhelmingly collaborated) created the “Autonomous Region of Kosovo & Metohija” – the latter being a Greek word describing church lands.