Slave ship
Diagram of a slave ship from the Atlantic slave trade. Slaves were chained together in incredibly close quarters, and overcrowding led to the spread of deadly diseases.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"Slave ship diagram."
http://en.wikipedia.org/wiki/File:Slave_ship_diagram.png
Wikipedia
Public domain.
