Press 'captions' for English subtitles.
Thousands gathered at downtown Cairo's High Court on the anniversary of the historic 6 April 2008 strike.
Members of 6 April Youth and other parties and movements including the Constitution Party marched from a number of locations across Cairo, ending outside the prosecutor-general's office.
Demonstrators were calling for the continuation of the revolution, and protesting against Muslim Brotherhood rule and the prosecutor-general.
Video by Simon Hanna.