Analysis of information sources in references of the Wikipedia article "Outhouse" in English language version.
Museum of Southeastern Denmark archaeology researcher Anna Beck was digging up what she thought was a semi-subterranean workshop, only to find that she was knee-deep in... yeah, you guessed it. She'd found a layer of medieval poop. Carbon dating pegs the toilet at more than 1,000 years old, making it possibly the oldest crapper in Denmark.
The remarkable collection spans nearly 300 years of people at the site near Independence Hall.