Iža is an important archaeological site. The name of the village is mentioned in 1172, 1268: Isa, 1291: Ysa, 1786: Isoha, 1808: Izsa. Two settlements belonged to Iža: Harčáš from the south (1397: Harchas) and Bokroš from the east (Bokros 1696). The area was settled as early as the late Stone Age. Rich finds testify to settlement also in the Eneolithic period. Excavations uncovered a North Pannonian burial ground, remains of the Dacian culture, and a Roman military camp. Directly on the banks of the Danube are the remains of a Roman fortress (second half of the 4th century AD), as well as a Slavic cemetery from the 9th century.
Archaeological finds in the Danube basin prove that this area was already inhabited in the Stone Age. Between 600 and 2900 BC the later Stone Age began. Alongside hunting and fishing, people began to cultivate the land and raise animals. In the 2nd millennium BC, Central Europe began to learn about bronze production. In the later Bronze Age, the typical Danubian culture emerged, which historians call “limestone-inlaid pottery”.