Protesters used umbrellas to shield themselves from pepper spray while demanding transparent elections.

The movement highlighted the wealth gap with the slogan 'We are the 99%'.

North Korea became the first country to withdraw from the NPT and conduct a nuclear test in the 21st century.

Protesters carrying roses stormed the parliament, leading to the resignation of Eduard Shevardnadze.

The self-immolation of street vendor Mohamed Bouazizi in Tunisia sparked protests that spread across the Arab world.

Barack Obama won the 2008 election and was inaugurated in January 2009.

The Orange Revolution was a series of protests against a rigged presidential election, resulting in a revote won by Viktor Yushchenko.

The US boycotted the Moscow games to protest the Soviet invasion of Afghanistan.

Student-led protests for democracy were forcibly suppressed by the Chinese military in June 1989.

Students in Soweto protested against being forced to learn in Afrikaans, the language of the apartheid government.