Yugoslavia.
The nation that was once part of Macedonia, Croatia, and Bosnia is Yugoslavia. Yugoslavia was a federation of several republics, including Macedonia (now North Macedonia), Croatia, and Bosnia and Herzegovina, among others. It existed from 1918 until its dissolution in the early 1990s, leading to the independence of its constituent republics.
Slovenia, Croatia, Bosnia and Herzegovina, Kosovo, Serbia, Montenegro, and Macedonia were once a part of Yugoslavia.
Not united, but a part of a federation.
Yes
Yugoslavia does not exist. Croatia was part of that country.
No, Croatia was never a part of Poland.
Not quite. But Dalmatia is a part of Croatia.
Indonesia
The kingdom of Nubia
The six republics once part of Yugoslavia are Bosnia and Herzegovina, Croatia, Macedonia, Montenegro, Serbia, and Slovenia [plus two autonomous areas]. Nationalities: Serb, Croats, Montenegrins, and Bosnians, and Albanians.
No,at that time Croatia was part of the Austrian Empire