Favorite tweets

#July4 Geological Map o U.S. (1870) https://t.co/IHGzz3LaP3 #FourthOfJuly http://pic.twitter.com/MBdj8YYt4v

— David Bressan (@David_Bressan) July 4, 2017

via Twitter https://twitter.com/David_Bressan

July 05, 2017 at 12:39AM