The Incredible Shrinking Palestine: a brief history
In 1947, the United Nations granted the Jewish immigrants in Palestine 55% of the Palestinians' homeland, even though they then represented less than 1/3 of the population and had purchased less that 5% of the land. This partition left the Palestinians with only 45%.
The Jewish Agency, which was the provisional government before Israel declared statehood in 1948, immediately began to execute its strategic plan to cleanse its partition of the indigenous Arab population. This plan, developed over the previous decade, was called Plan Dalet. By the time that Israel declared its independence, on May 14, 1948, the majority of the Palestinians living within Israel had been forcibly expelled from their homes by Israeli regular and irregular military forces.