Israel has been around long before the 20th century you idiotThe UN created Israel in 1948 by giving Jews most of the land despite Palestinian Arabs numbering twice the Jewish population:
United Nations Partition Plan for Palestine - Wikipedia
"The Plan was celebrated by most Jews in Palestine and reluctantly accepted by the Jewish Agency for Palestine with misgivings.
"Zionist leaders, in particular David Ben-Gurion, viewed the acceptance of the plan as a tactical step and a steppingstone to future territorial expansion over all of Palestine."
The link you cited isn’t to the UN creating Israel it’s to a recommendation for the land use after the civil war and end to the British mandate
It was a two state solution that Israel agree to but the Arab states did not