sentence: these foreign missions included mauritius ( 1915 ) , usa ( 1920 ) , ghana ( 1921 ) , egypt ( 1922 ) , bokhara ( 1923 ) , iran ( 1924 ) , palestine and syria ( 1925 ) , java and colombo ( 1931 ) burma and japan ( 1935 ) , argentina and albania ( 1936 ) , yugoslavia and sierra leone ( 1937 ) , spain ( 1946 ) and lebanon ( 1949 ) .