Wikipedia:Selected anniversaries/May 3

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This is a list of selected May 3 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.

May 2 May 4
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Blurb Reason
Mother's Day in Hungary, Lithuania, Mozambique, Portugal, Romania and Spain (2015) refimprove section
1808Finnish War: Sweden lost the fortress of Suomenlinna to Russia. needs more footnotes
1815 – Austrian troops led by Frederick Bianchi, Duke of Casalanza defeated the forces under King Joachim Murat of Naples at the Battle of Tolentino, the decisive battle of the Neapolitan War. no footnotes
1837 – The National and Kapodistrian University of Athens, the oldest university in Southeast Europe, was founded. refimprove section
1947 – A new Constitution of Japan went into effect, providing for a parliamentary system of government, guaranteeing certain fundamental rights, and relegating the Japanese monarchy to a purely ceremonial role. refimprove
1951 – The Royal Festival Hall, the first post-war building to become listed Grade I, opened as the venue for the Festival of Britain. refimprove section
2000 – The sport of geocaching was born when the coordinates of a cache outside Portland, Oregon, US, were posted to a Usenet group. globalize
2007 – Three-year-old Madeleine McCann disappeared while on holiday with her family in Portugal, sparking "the most heavily reported missing-person case in modern history". too detailed
Élisabeth of France |b|1764 missing page numbers



May 3: World Press Freedom Day; Constitution Memorial Day in Japan (1947); Constitution Day in Poland (1791)

Benty Grange helmet
Benty Grange helmet
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