Well, seeing as only Israel officially uses CE, (Common Era) as opposed to A.D. (Anno Domini), that limits the geographic region of your question to what is now Israel. So prior to 1400, the land was taken by the Ottoman Turks an held by them until 1917 when it was surrendered to Allenby. I suppose that’s one. (Much of the by 1850 empty land that is now in Jordan and Israel had previously been purchased from the Turks by the Jews, starting around 1850 and terraformed by the Jews moving back from Europe.) The San Remo Conference changed the land to a League of Nations Mandate in 1920, so that’s two. Then, when the Mandate ended and Israel became independent in 1948, three.
Mastroianni and Hart