The Israeli Declaration of Independence, formally the Declaration of the Establishment of the State of Israel, was proclaimed on 14 May 1948 (5 Iyar 5708) by David Ben-Gurion, the Executive Head of the World Zionist Organization and the chairman of the Jewish Agency for Palestine. It declared the establishment of a Jewish state in Eretz-Israel, to be known as the State of Israel, which would come into effect on termination of the British Mandate at midnight that day. The event is celebrated annually in Israel with a national holiday Independence Day on 5 Iyar of every year according to the Hebrew calendar.
The possibility of a Jewish homeland in Palestine had been a goal of Zionist organizations since the late 19th century. The British Foreign Secretary stated in the Balfour Declaration of 1917:
His Majesty's government view with favour the establishment in Palestine of a national home for the Jewish people, and will use their best endeavours to facilitate the achievement of this object, it being clearly understood that nothing shall be done which may prejudice the civil and religious rights of existing non-Jewish communities in Palestine, or the rights and political status enjoyed by Jews in any other country.
After World War I, the United Kingdom was given a mandate for Palestine, which it had conquered from the Ottomans during the war. In 1937 the Peel Commission suggested partitioning Mandate Palestine into an Arab state and a Jewish state, though the proposal was rejected as unworkable by the government and was at least partially to blame for the renewal of the 1936–39 Arab revolt.