Wikipedia:Selected anniversaries/September 4

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This is a list of selected September 4 anniversaries that appears on 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 soon will 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 5–6 events are posted at a time and thus not everything that is "most important and significant" can be listed. In addition, an event is not generally posted this year if it is also the subject of the scheduled September 4, 2018 featured article or the September 4, 2018 featured picture.

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.

< September 3 September 5 >

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Blurb Reason
Immigrant's Day in Argentina refimprove
1479 – The Catholic Monarchs of Castile and Aragon signed the Treaty of Alcáçovas with [[|Afonso V of Portugal|Afonso V of Portugal]] and his son, John to end the War of the Castilian Succession. refimprove
1781Los Angeles was founded as El Pueblo de Nuestra Señora la Reina de los Ángeles de Porciúncula by 44 Spanish settlers. LA: miscellaneous info; Pueblo: unreferenced section
1957 – Amid considerable publicity, the Ford Motor Company introduced the Edsel, which became synonymous with failure. multiple issues
1964 – The Forth Road Bridge crossing the Firth of Forth in Scotland opened to traffic. incomplete section
1972Mark Spitz won his seventh swimming gold medal at the 1972 Summer Olympics, setting new world records with each victory in each event. date not in article
1984 – The Progressive Conservative Party led by Brian Mulroney won the largest majority government by total number of seats in Canadian history during the federal election. lead too short


September 4: Labour Day in Canada and Labor Day in the United States (2017)

Pedro II of Brazil and Teresa Cristina of the Two Sicilies
Pedro II of Brazil and Teresa Cristina of the Two Sicilies

Anna of Trebizond (d. 1342) · Sushilkumar Shinde (b. 1941) · Steve Irwin (d. 2006)

More anniversaries:
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