One of the main reasons that the Three Gorges dam was built was to prevent flooding further downstream. The need for a dam was highlighted in 1954 when people were killed as a result of flooding of the Yangtze River.
Arab Spring refers to the democratic uprisings that arose independently and spread across the Arab world in 2011. The movement originated in Tunisia in December 2010 and quickly took hold in Egypt, Libya, Syria, Yemen, Bahrain, Saudi Arabia, and Jordan.
While the immediate cause for the First Intifada is generally dated to a truck incident involving several Palestinian fatalities at the Erez Crossing in December 1987, Mazin Qumsiyeh argues, against Donald Neff, that it began with multiple youth demonstrations earlier in the preceding month.