sentences:  The population of the late 19th century in Palestine reached 600,000 – mostly Muslim Arabs, but also significant minorities of Jews, Christians, Druze and some Samaritans and Bahai's.At that time, Jerusalem did not extend beyond the walled area and had a population of only a few tens of thousands.Collective farms, known as kibbutzim, were established, as was the first entirely Jewish city in modern times, Tel Aviv.