Barbary wars and slavery...

While Barbary corsairs naturally looted the cargo of ships they captured, their primary goal was to capture and enslave people on land or at sea. The slaves were often sold or put to work in various ways in North Africa.

Historian Robert C. Davis estimated that between 1530 and 1780 1–1.25 million Europeans were captured and taken as slaves to North Africa, principally Algiers, Tunis, and Tripoli, but also Istanbul and Salé.^[21]

Sultan of Morocco, by Eugène Delacroix

Being captured was just the first part of a slave's nightmare journey. Many slaves died on the ships during the long voyage back to North Africa due to disease or lack of food and water. Those who survived the journey were made a spectacle of as they walked through town on their way to the slave auction. The slaves would then have to stand from eight in the morning until two in the afternoon while buyers passed by and viewed them. Next came the auction, where the townspeople would bid on the slaves they wanted to purchase and once that was over, the governor of Algiers (the Dey) had the chance to purchase any slave he wanted for the price they were sold at at the auction. During the auctions the slaves would be forced to run and jump around to show their strength and stamina. After purchase, these slaves would either become slaves for ransom, or they would be put to work. Slaves were used for a wide variety of jobs, from hard manual labor to housework (the job assigned to most women slaves). At night the slaves were put into prisons called 'bagnios' that were often hot and overcrowded. However, these bagnios began improving by the 18th century, and some bagnios had chapels, hospitals, shops, and bars run by slaves, though such amenities remained uncommon.



http://en.wikipedia.org/wiki/Barbary_Wars#Barbary_Wars