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Wikipedia:Selected anniversaries/December 13

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This is a list of selected December 13 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, featured list 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.

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Ineligible

Blurb Reason
; Saint Lucy's Day in Italy and Scandinavia refimprove section
Republic Day in Malta (1974) refimprove section
1545 – The Council of Trent, an ecumenical council convoked by Pope Paul III in response to the growth of Protestantism, opened in Trent, Bishopric of Trent (now in modern Italy). refimprove
1577 – Sir Francis Drake left Plymouth, England, with five ships and 164 men on his round-the-world voyage. unreferenced section
1636 – The Massachusetts Bay Colony organized three militia units, an act considered to be the founding of the United States National Guard. refimprove section
1642 – Dutch explorer Abel Tasman became the first European explorer to see New Zealand. featured on November 24
1758 – While transporting Acadians from Prince Edward Island to France, the Duke William sank in the North Atlantic with the loss of over 360 lives, one of the greatest marine disasters in Canadian history. refimprove section
1939Second World War: The Royal Navy cruisers HMS Exeter, HMS Ajax and HMNZS Achilles defeated the German Deutschland class cruiser Admiral Graf Spee off the estuary of the River Plate off the coast of Argentina and Uruguay. refimprove section, outdated
1974Vietnam War: North Vietnamese forces launched the Spring Offensive, which culminated in the collapse of South Vietnam five months later. CN tags
1982An earthquake registering 6.2 Mw struck North Yemen, killing about 2,800 people. Date not cited
2003Post-invasion Iraq: During Operation Red Dawn, American forces found former Iraqi President Saddam Hussein hiding in a spider hole and captured him. refimprove
2006 – The baiji, a freshwater dolphin found only in the Yangtze River in China, was announced as functionally extinct by leaders of the Yangtze Freshwater Dolphin Expedition. refimprove section
Samuel Johnson |d|1784| refimprove section (list of works)
Heinrich Heine |b|1797| Orange banner lede too short

Eligible

Notes

December 13: Nanjing Massacre Memorial Day in China (1937)

The Sherman Fairchild Sciences complex at Dartmouth College
The Sherman Fairchild Sciences complex at Dartmouth College
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