In the 19th century, following the completion of the Suez Canal in Egypt in 1869, trade shifted to that route from the overland route through Syria, and the commercial importance of Aleppo and Damascus underwent a marked decline. Many families left Syria for Egypt (and a few for Lebanon) in the following decades, and with increasing frequency until the First World War, many Jews left the Middle East for western countries, mainly Great Britain, the United States, Mexico and Argentina. Further emigration, particularly following the establishment of the state of Israel in 1948, followed.