Archaeothoughts: Signs of the March. #marchforscience #sciencemarchdc https://t.co/OR7I2KwE7c

Saturday, April 22, 2017

Signs of the March. #marchforscience #sciencemarchdc http://pic.twitter.com/OR7I2KwE7c
— Bill Auchter (@archaeothoughts) April 23, 2017

from Twitter https://twitter.com/archaeothoughts