Who owned Gaza before Israel?
Egypt
Following the 1948 Arab-Israeli War, Egypt administered the newly formed Gaza Strip. It was captured by Israel in the Six-Day War in 1967. Between 1994 and 1999, Israel transferred security and civilian responsibility for much of the Gaza Strip and the West Bank to the Palestinian Authority.The Gaza Strip and the West Bank are two Palestinian territories that were part of Mandate Palestine and were captured by Israel during the Six-Day War in 1967. There are over 5 million Palestinians combined living in the two territories.The motivation behind the disengagement was described by Sharon's top aide as a means of isolating Gaza and avoiding international pressure on Israel to reach a political settlement with the Palestinians. The disengagement plan was implemented in August 2005 and completed in September 2005.

Was Palestine a country before Israel : While the State of Israel was established on 15 May 1948 and admitted to the United Nations, a Palestinian State was not established. The remaining territories of pre-1948 Palestine, the West Bank – including East Jerusalem- and Gaza Strip, were administered from 1948 till 1967 by Jordan and Egypt, respectively.

How did Palestine get Gaza

1994: Gaza under Palestinian Authority

In May 1994, following the Palestinian-Israeli agreements known as the Oslo Accords, a phased transfer of governmental authority to the Palestinians took place. Much of the Strip came under Palestinian control, except for the settlement blocs and military areas.

Who lived in Palestine first : the Canaanites
In early times, Palestine was inhabited by Semitic peoples, the earliest being the Canaanites. According to tradition, Abraham, the common ancestor of the Jews and the Arabs, came from Ur to Canaan.

za]), or simply Gaza, is a polity and the smaller of the two Palestinian territories (the other being the West Bank). On the eastern coast of the Mediterranean Sea, Gaza is bordered by Egypt on the southwest and Israel on the east and north.

May 1994
In September 1993, leaders of Israel and the PLO signed the Oslo Accords calling for Palestinian administration of the Gaza Strip and the West Bank town of Jericho, which was implemented in May 1994. Israeli forces withdrew from Gaza, leaving a new Palestinian National Authority (PNA) to administer and police the city.

Why Gaza exists

At the conclusion of the 1948 Arab–Israeli War, Egypt was in control of Gaza and the surrounding area, that came to be called the Gaza Strip. Gaza's growing population was augmented by an influx of refugees fleeing nearby cities, towns and villages that were captured by Israel.The country's name was changed in 1949 from Transjordan to Jordan and Palestinians were given seats in the Jordanian Parliament. A royal decree in March 1949 forbade the use of the term "Palestine" in legal documents, and other measures were designed to emphasize that there would not be an independent Palestine.Before 1948, Palestine was home to a diverse population of Arabs, Jews, and Christians, as all groups had religious ties to the area, especially the city of Jerusalem.

In 1917, in order to win Jewish support for Britain's First World War effort, the British Balfour Declaration promised the establishment of a Jewish national home in Ottoman-controlled Palestine.

Where did Palestinians originally come from : More recent studies since 2017 have found that Palestinians are primarily descended from ancient Levantines present in what is today Israel and Palestine, dating back at least 3700 years.

Why is Gaza part of Palestine : 1994: Gaza under Palestinian Authority

In May 1994, following the Palestinian-Israeli agreements known as the Oslo Accords, a phased transfer of governmental authority to the Palestinians took place. Much of the Strip came under Palestinian control, except for the settlement blocs and military areas.

How did Israel get Palestine

Jordan and Egypt controlled the rest of the territory assigned by resolution 181 to the Arab State. In the 1967 war, Israel occupied these territories (Gaza Strip and the West Bank) including East Jerusalem, which was subsequently annexed by Israel.

the Canaanites
In early times, Palestine was inhabited by Semitic peoples, the earliest being the Canaanites. According to tradition, Abraham, the common ancestor of the Jews and the Arabs, came from Ur to Canaan.Scholars believe the name “Palestine” is derived from the name of the people—the Philistines—who occupied part of the region in the 12th century B.C. Over the centuries, Jews, Muslims and Christians and followers of other religions have all claimed special connections to the region.