In the early months of 2011 a wave of social unrest swept across the Arab world as people protested against repressive and authoritarian regimes, economic stagnation, unemployment and corruption. It began with reaction to the self-immolation of a young market trader in Tunisia, but soon became an outpouring of resentment after generations of fear. On The History Hour, Professor Khaled Fahmy of Cambridge University, helps us unravel the roots of the uprisings, describes what it was like to be there, and looks at why things haven't turned out as the protesters had wanted.

Photo: Libyan anti-Gaddafi protesters wave their old national flag as they stand atop an abandoned army tank in the eastern Libyan city of Benghazi on February 28, 2011.(Credit PATRICK BAZ/AFP via Getty Images)

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