November 22, 2011 (Tuesday)
Armed conflicts and attacks
- 2011 Egyptian revolution: Three American University in Cairo students are arrested after throwing firebombs at security forces amid ongoing protests in Cairo, Egypt. (CBS News)
Business and economy
- Multinational public transport company Arriva wins a major public bus and rail transport contract in Stockholm, Sweden. (Stockholm Transit – in Swedish)
Politics and elections
- Darren Scully, the mayor of the Irish town of Naas, resigns after the latest in a series of scandals, having made radio comments about the "aggressive attitude" of "black Africans". A police investigation into his actions is underway. (RTE News) (Daily Mail) (Irish Times)
Science
- Scientists discover Bulbophyllum nocturnum, the first orchid known to flower at night, in New Britain off the coast of Papua New Guinea. (BBC)
- American evolutionary biologist Lynn Margulis dies aged 73. (National Center for Science Education)