The Palestine Liberation Organization (PLO) is founded, with Yasser Arafat elected as its first leader.

The Palestine Liberation Organization is a Palestinian nationalist coalition that is internationally recognized as the official representative of the Palestinian people in both the occupied Palestinian territories and the diaspora. It is currently represented by the Palestinian Authority based in the West Bank city of Al-Bireh.

Yasser Arafat, also popularly known by his kunya Abu Ammar, was a Palestinian political leader. He was chairman of the Palestine Liberation Organization (PLO) from 1969 to 2004, President of the State of Palestine from 1989 to 2004 and President of the Palestinian Authority (PNA) from 1994 to 2004. Ideologically an Arab nationalist and a socialist, Arafat was a founding member of the Fatah political party, which he led from 1959 until 2004.

May 28 is the 148th day of the year in the Gregorian calendar; 217 days remain until the end of the year.