About

A blog from the Penn Libraries, serving only the best since 2012.

 

 

Contact?

Kate Atkins, Senior Editor, katkins at upenn.edu

 

 

 

 

Comments

  1. I recommend this Timeline Eons app, a graphic representation of the entire natural and human history:

    http://itunes.apple.com/us/app/timeline-eons/id433352152?mt=8&ls=1

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