I take it you mean modern Israel. Basically, the territory of Israel increased in a few steps, but otherwise remained stable. The increases were usually connected with military conflicts. An example is the Little Triangle in nothern Israel, that was incorporated into the country (in exchange for another region though).
Please note that this is a politically charged question and any responses will be biased.
A prophet is similar to a missionary who travels to spread their religion. They are believed to receive visions from God and write down their visions to spread to others.
