Wikipedia:Selected anniversaries/June 30

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This is a list of selected June 30 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.

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Independence Day in the Democratic Republic of the Congo (1960) refimprove section
1651Khmelnytsky Uprising: Ukrainian Cossacks and their Crimean Tatar allies were annihilated by a Polish–Lithuanian Commonwealth army in the Battle of Berestechko, probably the largest land battle in the 17th century. appears on June 28
1758Seven Years' War: Austria defeated Prussia at the Battle of Domstadtl, forcing Frederick the Great to leave Moravia. no footnotes
1905 – The scientific journal Annalen der Physik published Albert Einstein's article "On the Electrodynamics of Moving Bodies", the third of his Annus Mirabilis papers, introducing the theory of special relativity. refimprove section
1972 – The International Time Bureau added the first leap second to the Coordinated Universal Time time scale. refimprove section
1987 – The Royal Canadian Mint introduced the Canadian one-dollar coin, commonly known as the loonie. refimprove
2007 – In an attempted terrorist attack, a car loaded with propane canisters was driven into the terminal of Scotland's Glasgow International Airport and set ablaze. refimprove section
* 1963 – A car bomb intended for Mafia boss Salvatore Greco killed seven police and military officers near Palermo, Sicily. Undercited
: Asteroid Day Tagged for COI and cleanup



June 30

Coronation of Pope Paul VI
Coronation of Pope Paul VI
More anniversaries: