Editing 1984 (section)

===December ===
[[File:Boeing 720 Controlled Impact Demonstration.jpg|thumb|[[Controlled Impact Demonstration]]]]
* [[December 1]]
** A peace agreement between [[Kenya]] and [[Somalia]] is signed in the [[Egypt]]ian capital [[Cairo]]. With this agreement, in which Somalia officially renounces its historical territorial claims, relations between the two countries begin to improve.
** The [[LRT Line 1 (Metro Manila)|Light Rail Transit]] in [[Manila]] begins service with the opening of its southern segment, as the first rapid transit service in Southeast Asia.
* [[December 2]] – [[1984 Australian federal election]]: [[Bob Hawke]]'s [[Australian Labor Party|Labor]] [[Hawke government|government]] is re-elected with a reduced majority, defeating the [[Liberal Party of Australia|Liberal]]/[[National Party of Australia|National]] [[Coalition (Australia)|Coalition]] led by [[Andrew Peacock]].
* [[December 3]] – [[Bhopal disaster]]: A [[methyl isocyanate]] leak from a [[Union Carbide]] pesticide plant in [[Bhopal]], Madhya Pradesh, India, kills more than 8,000 people outright and injures over half a million (with more later dying from their injuries the death toll reaches 23,000+) in the worst industrial disaster in history.
* [[December 4]]
** [[Sri Lankan civil war|Sri Lankan Civil War]], [[1984 Mannar massacre]]: [[Sri Lankan Army]] soldiers kill over 200 civilians in the town of [[Mannar, Sri Lanka|Mannar]].
** [[Hezbollah]] militants [[Aircraft hijacking|hijack]] a [[Kuwait Airlines]] plane and kill 4 passengers.
* [[December 19]] – The People's Republic of China and the United Kingdom sign the [[Sino-British Joint Declaration]] on the future of Hong Kong.
* [[December 20]] – [[Disappearance and death of Jonelle Matthews|Disappearance of Jonelle Matthews]] from [[Greeley, Colorado]].  Her remains were discovered on 23 July 2019, located  about {{convert|15|mi|abbr=on}} southeast of Jonelle's home.<ref>{{cite web |title=Remains Found in Weld County Identified |publisher=Greeley Police Department |author=Detective Robert Cash |date=July 25, 2019 |url=https://greeleypd.com/recovery-of-jonelle-matthews/ |access-date=July 27, 2019}}</ref><ref>{{cite news |title=Remains of Jonelle Matthews dug up by work crew 34 years after she vanished, Greeley police say—Then 12-year-old disappeared after middle school Christmas concert |author=Kieran Nicholson |publisher=The Denver Post |date=July 25, 2019 |url=https://www.denverpost.com/2019/07/25/jonelle-matthews-remains-found-greeley-police/ |access-date=July 27, 2019}}</ref> The cause of death "was a gunshot wound to the head".<ref name="Pietsch">{{cite news |title=Man Charged With Murder in 1984 Killing of Colorado Girl Taken From Home |work=[[The New York Times]] |author=Bryan Pietsch |date=October 13, 2020 |url=https://www.nytimes.com/2020/10/13/us/steven-pankey-murder-kidnapping.html |access-date=24 October 2020}}</ref>
* [[December 22]]
** Four [[African-American]] youths ([[Barry Allen (shooting victim)|Barry Allen]], [[Troy Canty]], [[James Ramseur]], and [[Darrell Cabey]]) board an express train in the [[The Bronx|Bronx]] borough of New York City. They demand five dollars from [[Bernhard Goetz]], who shoots them. The event starts a national debate about urban crime in the United States.
** In [[Malta]], Prime Minister [[Dom Mintoff]] resigns.
* [[December 28]] – A [[Soviet Union|Soviet]] [[cruise missile]] plunges into [[Lake Inari]] in Finnish [[Lapland (Finland)|Lapland]], known as the [[Lake Inari missile incident]]. Finnish authorities announce the fact in public on January 3, 1985.