Rubuta ci gaba don wannan sakin layi - A lokacin Yaƙin Duniya na II, lokacin da aka raba Czechoslovakia na ɗan lokaci, Hungary ta mamaye wani ɓangare na Czechoslovak na gundumar Zemplen a ƙarƙashin Kyautar Vienna ta Farko, kuma an ƙara shi zuwa gundumar Zemplén da Ung. Bayan Yaƙin Duniya na II, an dawo da iyakar kafin yaƙin, kuma gundumar Zemplén ta Hungary ta haɗu da gundumar Borsod da ɓangaren Hungary na Abov-Turňa don samar da gundumar Borsod-Abaúj-Zemplén ta yanzu. Tun bayan rabuwar
na Czechoslovakia zuwa Slovakia da Jamhuriyar Czech a 1993, arewacin Zemplín wani bangare ne na Slovakia, ya kasu tsakanin gabashin yankin Košice da yankin Prešov.