Zionism had not begun by that point. In the 1840s, if a Jew wanted to Return to the Land of Israel at that point they meant it in a Messianic sense.
Very few Jews went to Ottoman Palestine in the 1840s, since Zionism had not yet developed and Jews generally preferred to stay were they were or go to the United States. Those Jews who went to Ottoman Palestine bought land and settled much like the people already there.
The Exile of Jews from palestine is known as the Diaspora
Because Palestine keeps attacking the Jews.
There is no such group.
no
No. Jews had already been migrating to Israel/Palestine in substantial numbers since 1919.
There have always been Jews in Palestine. They were not the majority between the years 132 CE and 1949 CE.
The declaration gave the Jews of Palestine the hope that they might one-day have a country of their own.
Diaspora.
no
Sanhedrin
they had part of palestine.