This is a list of selected February 9 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.
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1913 – A group of meteorswas visible across much of the eastern seaboard of North and South America, leading astronomers to conclude that the source had been a small, short-lived natural satellite of the Earth.
1920 – The Svalbard Treaty was signed, recognising Norwegian sovereignty over the Arctic archipelago of Svalbard, but all signatories were also given equal rights to engage in commercial activities on the islands.