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I realized that the file histories of Wikimedia Commons images can sometimes be used to track scientific discoveries over time. In this example I put the history of an image of Trans-Neptunian Objects tracked from March 23, 2006 to its incarnation on February 9, 2009.
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http://commons.wikimedia.org/wiki/File:TheTransneptunians_Size_Albedo_Color.svg
/Wikimedia Commons/
Tracking new discoveries using file history
http://commons.wikimedia.org/wiki/File:TheTransneptunians_Size_Albedo_Color.svg
http://commons.wikimedia.org/wiki/File:TheTransneptunians_Size_Albedo_Color.svg
http://commons.wikimedia.org/wiki/File:TheTransneptunians_Size_Albedo_Color.svg
http://commons.wikimedia.org/wiki/File:TheTransneptunians_Size_Albedo_Color.svg
http://commons.wikimedia.org/wiki/File:TheTransneptunians_Size_Albedo_Color.svg
http://commons.wikimedia.org/wiki/File:TheTransneptunians_Size_Albedo_Color.svg
http://commons.wikimedia.org/wiki/File:TheTransneptunians_Size_Albedo_Color.svg
![Introduction to Wikimedia Commons [[User:MB-one]] Matti ... · Introduction to Wikimedia Commons Introduction What is Wikimedia Commons? “Wikimedia Commons is a database of content](https://img.dokumen.tips/doc/110x75/5fff7ce042830266fa4b39f8/introduction-to-wikimedia-commons-usermb-one-matti-introduction-to-wikimedia.jpg)
