Ra'anana is an affluent city in the southern Sharon Plain of the Central District of Israel. It was founded in 1922 as an American-Jewish settl…Ra'anana is an affluent city in the southern Sharon Plain of the Central District of Israel. It was founded in 1922 as an American-Jewish settlement, c.1 km south of the village of Tabsur, where an important World War I battle had taken place four years previously.