The King opens the meeting of the Estates-General (May 5, 1789) this is all know
#1 is brit milah
#2 is Yom Kippur
Egypt's government nationalized the Suez Canal
This meant that the canal would now be controlled by the government and they planned to use the money earned from traffic going through the canal to finish funding the Aswan dam. This resulted in the Suez crisis in which France, the United Kingdom, and Israel, invaded Egypt. The canal was opened at a later time, but the war kept going on.
I believe the answer is C but don't quote me on that