Wikipedia:Selected anniversaries/May 13

This is a list of selected May 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 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 12	May 14 →

May 13: Rotuma Day in Fiji

• 1619 – Dutch statesman Johan van Oldenbarnevelt was executed in The Hague after having been accused of treason.

• 1846 – The United States declared war on Mexico after a series of disputes in the wake of the 1845 U.S. annexation of Texas, starting the Mexican–American War.

• 1848 – Maamme, the national anthem of Finland written by German composer Fredrik Pacius and Finnish poet Johan Ludvig Runeberg, was performed for the first time.

• 1888 – Isabel the Redeemer (pictured) signed the Lei Áurea into law, formally abolishing slavery in Brazil.

• 1912 – The Royal Flying Corps (later the Royal Air Force) was established in the United Kingdom.

• 1917 – Our Lady of Fatima: Ten-year-old Lúcia Santos and her siblings Francisco and Jacinta Marto reportedly began experiencing a Marian apparition near Fátima, Portugal.

• 1969 – Chinese-Malay race riots began in Kuala Lumpur, Malaysia, leaving at least 190 people dead, and leading the government to declare a state of emergency and suspend Parliament until 1971.

More anniversaries:

• May 12
• May 13
• May 14