1827 – Battle of Navarino – a combined Turkish and Egyptian armada is destroyed by an allied British, French, and Russian naval force in the port of Navarino in Pylos, Greece. The most important result of this battle is the end of the Greek Liberation War and the affirmation of independence of modern Greece.
1831 - First day of trading on the Madrid Stock Exchange.
1883 – Peru and Chile signed the Treaty of Ancón, by which the Tarapacá province was ceded to the latter, bringing an end to Peru's involvement in the War of the Pacific.
1904 - Chile and Bolivia sign the Treaty of Peace and Friendship.
2011 – 2011 Libyan civil war: Forces loyal to the National Transitional Council take the city of Sirte, the last remaining pro-Gaddafi stronghold. Subsequently, Colonel Muammar al-Gaddafi is captured and killed.
2018 - Around 700,000 people march against Brexit (and for a second referendum on the issue) in London, in the biggest such gathering in the United Kingdom since 2003.