Wikipedia:Selected anniversaries/June 12
This is a list of selected June 12 anniversaries that appear in the "On this day" section of the Main Page. To suggest a new item, in most cases, you can be bold and edit this page. Please read the selected anniversaries guidelines before making your edit. However, if your addition might be controversial or on a day that is or will soon be on the Main Page, please post your suggestion on the talk page instead.
Please note that the events listed on the Main Page are chosen based more on relative article quality and to maintain a mix of topics, not based solely on how important or significant their subjects are. Only four to five events are posted at a time and thus not everything that is "most important and significant" can be listed. In addition, an event is generally not posted this year if it is also the subject of the scheduled featured article or picture of the day.
To report an error when this appears on the Main Page, see Main Page errors. Please remember that this list defers to the supporting articles, so it is best to achieve consensus and make any necessary changes there first.
June 12: Trooping the Colour and the Queen's Official Birthday in the United Kingdom and several other Commonwealth countries (2010); Independence Day in the Philippines; Russia Day in the Russian Federation; Dia dos Namorados in Brazil
- 1889 – In one of Europe's worst rail disasters, runaway passenger carriages collided with a following train near Armagh, present-day Northern Ireland, killing 88 people.
- 1942 – On her thirteenth birthday, Anne Frank began keeping her diary during the Nazi occupation of the Netherlands.
- 1987 – The Cold War: During a speech at Berlin's Brandenburg Gate by the Berlin Wall (pictured), U.S. President Ronald Reagan challenged Soviet leader Mikhail Gorbachev to "tear down this wall".
- 1999 – In the aftermath of the bombing of Yugoslavia and the Kosovo War, the NATO-led Kosovo Force entered Kosovo with a mandate of establishing a secure environment in the territory.