Attackers drove a van into pedestrians on London Bridge and then stabbed people in Borough Market.

Mosul was the largest city held by ISIS and served as its Iraqi capital until 2017.

A suicide bomber attacked the arena as fans were leaving the Ariana Grande concert.

Raqqa served as the de facto capital of the Islamic State until it was liberated by US-backed forces in 2017.

Hosni Mubarak was forced to resign in 2011 after massive protests in Tahrir Square.

The movement began as a protest against fuel tax increases.

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%'.

Hurricane Maria crippled the island's power grid and caused thousands of deaths.

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