This is the third revolution in Egypt in the last 100 years.
The 1919 Revolution
This caused a popular uprising in Egypt similar to what is happening today. Several weeks of mostly non-violent strikes and demonstrations shut down the country. The revolt joined Muslims and Copts, men and women.
Revolt and negotiations lasted until 1922 when the British accepted independence for Egypt and the establishment of a constitutional monarchy.
The 1952 Revolution
Gamal Nasser and Anwar Sadat, among others, formed the Free Officers Movement. In 1952 the officers began a revolution. Really just a military coup. King Farouk abdicated, setting the state for a "republic" that was really just a different kind of monarchy where army officers would be "elected" president and rule for life.