I must correct both of you there,Dalmacija you are pushing unofficial theory as official and you Pescarii probably think that Slavs did came to Balkans like Greeks,Illyrians,Dacians,etc..not Europe because official theory based on Byzantine theory which means that Serbs just migrated south from Poland,not from Asia to Europe,that basically happened much earlier :
Byzantine sources report that part of the White Serbs, led by the Unknown Archont, migrated southwards from their Slavic homeland of White Serbia (Poland) in the late sixth century and eventually overwhelmed the Serbian lands that now make up Serbia, Macedonia, Montenegro, Bosnia, Herzegovina and Dalmatia. After settling on the Balkans, Serbs mixed with other Slavic tribes (which settled during the great migration of the Slavs) and with descendants of the indigenous peoples of the Balkans: Greeks, Thracians, Dacians and Illyrians.
Afterwards, overwhelmed by the Ottoman wars in Europe which ravaged their territories, Serbs once again started crossing the rivers Sava and Danube and resettling the previously abandoned regions in Central Europe which are today's Vojvodina, Slavonia, Transylvania and Hungary proper. Apart from the Habsburg Empire, thousands were attracted to Imperial Russia, where they were given territories to settle: Nova Serbia and Slavo-Serbia were named after these refugees. Two Great Serbian Migrations resulted in a relocation of the Serbian core from the Ottoman-dominated South towards the developed (Christian) North, where it has remained ever since.
I must remind you that this is not topic about Serbian History,few last post could be transfered to that topic if it would be created,but this topic just study part of Serbian History when Anti-Serb sentiments reached its peak in region and further and term Serbophobia itself,for which can be said it is twin sister of term Anti-Semitism.Term Serbophobia is being disputed even today,but I wanted to show similarities in propaganda of anti-Jew/anti-Serb sentiments.