Answer 1
ethnic cleansing campaign of Jordan
Answer 2
The answer you are likely looking for is the Nakba or Great Catastrophe, which corresponds with Israeli Independence in 1947-1949. However, 2,000,000 is not an estimate that any serious historian has made. Most agree that between 650,000-800,000 (with general consensus at 720,000) Palestinians became displaced refugees in territory not controlled by Israel after the war.
earthquake
The Holocaust.
The 1972 Munich Olympic Games.
There is no group that was displaced by the Assyrian Empire which survived that event. The Northern Israelite Tribes, Arameans, Moabites, and several other groups were displaced but have since disappeared by merging into other ethnic groups.
The attacks on September 11
No single event, Jews had wished to return to their ancestral lands to rejoin the Jews remaining there since the Roman expulsion.
There have been fights in Paris as many march in support of the Palestinians. Another current event in France is France recently celebrating Bastille Day.
Their Volume should exceed 1 million visitors ,their capital costs should be at least $500 million and their reputation should be of a MUST SEE event.
With appearance fees which can be a couple of million per event, corporate appearances of a couple of million, sponsorships of tens of millions per year and if he wins the event that can be another 1 million plus. Quite a few million per week.
The creation of Israel directly resulted in the Jewish-Arab Engagement of 1947-1949 which resulted in 720,000 Palestinians becoming refugees. This event is commemorated by Palestinians are the Nakba or Great Catastrophe.
Physically, a subduction zone creates a trench in the ocean. As an active event, a subduction creates an earth quake and possibly a tsunami (depending on how much water was displaced).
Pangaea