21st century

====2019====
* [[January 10]] – [[Venezuela]] enters a [[2019 Venezuelan presidential crisis|presidential crisis]] after the disputed results of the [[2018 Venezuelan presidential election]] leads to [[Juan Guaidó]] being declared the acting president, disputing [[Nicolás Maduro]].
* [[February 27]] – [[February 28|28]] – President [[Donald Trump]] and North Korean leader [[Kim Jong-un]] meet for the [[2019 North Korea–United States Hanoi Summit]] in [[Vietnam]].
* [[March 15]]:
** The [[Christchurch mosque shootings]]: Australian terrorist Brenton Harrison Tarrant kills 51 people and injures 40 at two mosques in New Zealand.
** Over 2 million people in [[Hong Kong]] [[2019–2020 Hong Kong protests|protest]] against [[Fugitive Offenders and Mutual Legal Assistance in Criminal Matters Legislation (Amendment) Bill 2019|proposed legislation]] regarding [[extradition]] to China.
* [[March 23]] – Most of the territory formerly held by the [[Islamic State of Iraq and the Levant|Islamic State]] in Syria [[Battle of Baghuz Fawqani|collapses]] amidst the [[Syrian Civil War]]. After years of global [[International military intervention against ISIL|push back]], the extremist group transitions from a [[proto-state]] into an [[Eastern Syria insurgency (2017–present)|insurgency]] as it retains offshoots and influence in regions across the globe.
* [[April 11]]:
** [[WikiLeaks]] co-founder [[Julian Assange]] is [[Indictment and arrest of Julian Assange|arrested]] after seven years in [[Embassy of Ecuador, London|Ecuador's embassy]] in London.<ref>{{cite news|url=https://www.bbc.co.uk/news/uk-47891737|title=Julian Assange: Wikileaks co-founder arrested in London|date=April 11, 2019|work=[[BBC News]]|access-date=April 11, 2019}}</ref><ref>{{cite news|url=https://www.theguardian.com/uk-news/2019/apr/11/julian-assange-arrested-at-ecuadorian-embassy-wikileaks|title=Julian Assange arrested at Ecuadorian embassy|date=April 11, 2019|newspaper=[[The Guardian]]|access-date=April 11, 2019}}</ref>
** Amid [[2018–19 Sudanese protests|mass protests]], [[Omar al-Bashir]] is deposed as [[President of Sudan]] in [[2019 Sudanese coup d'état|a coup d'état]], after nearly 30 years in office.<ref>{{cite news|url=https://www.bbc.co.uk/news/world-africa-47891470|title=Sudan military says it has seized power|date=April 11, 2019|work=[[BBC News]]|access-date=April 11, 2019}}</ref>
* [[April 15]] – During [[Holy Week]], a major [[Notre-Dame fire|fire]] engulfs [[Notre-Dame de Paris|Notre-Dame Cathedral]] in Paris, resulting in the roof and main spire collapsing.<ref>{{cite news|url=https://www.theguardian.com/world/2019/apr/15/notre-dame-fire-paris-france-cathedral|title=Notre Dame fire: major incident at historic Paris landmark|date=April 15, 2019|newspaper=[[The Guardian]]|access-date=April 15, 2019}}</ref><ref>{{cite news|url=https://www.bbc.co.uk/news/world-europe-47941794|title=Notre-Dame cathedral: Firefighters tackle blaze in Paris|date=April 15, 2019|work=[[BBC News]]|access-date=April 15, 2019}}</ref>
* [[April 21]] – [[2019 Sri Lanka Easter bombings|A series of Islamist bomb attacks]] occur at eight locations in [[Sri Lanka]], including three churches, four hotels and one housing complex in [[Colombo]], on [[Easter|Easter Sunday]], leaving 259 people dead and over 500 injured. It is the deadliest terrorist attack in the country since the [[Sri Lankan Civil War]] ended in 2009.<ref>{{cite web|url= https://www.smh.com.au/world/asia/scores-hurt-in-sri-lanka-easter-church-bombings-20190421-p51fyn.html |title=Hundreds killed, 450 injured as explosions rock Catholic churches during Easter mass |date= April 22, 2019|website=The Sydney Morning Herald |access-date= April 22, 2019}}</ref>
* [[April 28]] – [[Victor Vescovo]] achieves the deepest dive of any human in history, as he reaches [[Challenger Deep]] within the [[Mariana Trench]], at a depth of 10,928&nbsp;m (35,853&nbsp;ft).<ref>{{cite web|url=https://fivedeeps.com/wp-content/uploads/2019/05/FDE-Challenger-Release-FINAL-5132019.pdf|title=Deepest Submarine Dive in History, Five Deeps Expedition Conquers Challenger Deep|date=May 13, 2019|access-date=May 13, 2019|publisher=Five Deeps}}</ref>
* [[April 30]] – [[Emperor of Japan|Emperor]] [[Akihito]] of [[Japan]] [[2019 Japanese imperial transition|abdicates]] from his [[Chrysanthemum Throne|throne]], the first abdication by a Japanese monarch in almost two centuries. The abdication ends the [[Heisei]] [[Japanese era names|era of Japan]] and ushers in the [[Reiwa|Reiwa era]] with new emperor [[Naruhito]] ascending to the throne on [[May 1]].
* [[July 16]] – The [[European Parliament]] elects [[Ursula von der Leyen]] as the new [[president of the European Commission]].
* [[December 10]] – [[Sanna Marin]], at the age of 34, becomes the world's youngest serving prime minister after being selected to lead [[Finland]]'s [[Social Democratic Party of Finland|Social Democratic Party]].
* [[December 18]] – President [[Donald Trump]] is [[First impeachment of Donald Trump|impeached]] by the [[United States House of Representatives]].
* [[December 31]] – The first known case of [[COVID-19]] is reported in [[Wuhan]], [[China]]; the disease would rapidly proliferate into a [[COVID-19 pandemic|global pandemic]] throughout the next three months.<ref name="Novel Coronavirus—China">{{cite web |title=WHO {{!}} Novel Coronavirus—China |url=https://www.who.int/csr/don/12-january-2020-novel-coronavirus-china/en/ |archive-url=https://web.archive.org/web/20200114185815/https://www.who.int/csr/don/12-january-2020-novel-coronavirus-china/en/ |archive-date=14 January 2020 |website=WHO |access-date=9 April 2020}}</ref><ref name="5days">{{cite web|title=Covid-19: Five days that shaped the outbreak|first=Jane|last=McMullen|work=BBC News|publisher=BBC|url=https://www.bbc.co.uk/news/world-55756452|date=25 January 2021|access-date=25 January 2021|archive-date=26 January 2021|archive-url=https://web.archive.org/web/20210126021655/https://www.bbc.co.uk/news/world-55756452|url-status=live}}</ref>