The event, marking the displacement of hundreds of thousands of Palestinians when Israel was created, was condemned by the Israeli ambassador to the world body. The United Nations for the first time on Monday officially commemorated the displacement of hundreds of thousands of Palestinians in the war surrounding the creation of Israel 75 years ago, drawing a sharp response from the Israeli ambassador to the world body.

The event — marking the Nakba, or “catastrophe,” by Palestinians — was attended by the Palestinian president, Mahmoud Abbas; many member states from Asia, Africa, Central and South America and the Middle East; and representatives of the African Union and the Arab League, who delivered speeches. The United States and Britain did not attend.

“This resolution represents a recognition by your organizations of the ongoing historic injustice that fell on the Palestinian people in 1948 and before that date, and that continues after,” Mr. Abbas said. He added that it was also a rebuttal “for the first time by you of the Israeli Zionist narrative that denies this Nakba.”The event was the latest arena for a decades-long narrative battle between Israelis and Palestinians. To Israelis, the creation of their state was a heroic moment for a long-persecuted people that deserves celebration. But to Palestinians, it was a moment of profound national trauma.