No, Islam came about 500 or 600 years after Jesus.

Claim on land is very simple. It works this way: If you were born there and have lived there all your life, you just naturally feel that it is your land. If new people arrive from somewhere else entirely and say it's their land now, you don't like it! ;-)

If you'll recall, this is exactly what caused trouble between the whites and the Native American tribes, and it is essentially what has been causing trouble between the Jews and Arabs in the Middle East since 1948.

Of course in the meantime you have Jews who HAVE been born in Israel since 1948, so they just naturally do feel that it's their land. And so, the disagreement becomes chronic, and it goes on for generations.