Bastille Day had often held people jailed on the basis of "lettres de cachet" (literally "signet letters"), arbitrary royal indictments that could not be appealed and did not indicate the reason for the imprisonment. The Bastille held a large cache of ammunition and gunpowder, and was also known for holding political prisoners whose writings had displeased the royal government, and was thus a symbol of the absolutism of the monarchy. As it happened, at the time of the attack in July 1789 there were only seven inmates, none of great political significance. The crowd was eventually reinforced by mutinous "Gardes Françaises" ("French
Prisoners of war in the American Revolutionary War reserved for prisoners. Offshore of the Northern states, conditions on prison ships caused many prisoners to enlist in the British military to save their lives. Most American POWs that survived incarceration were held until late 1779, when they were exchanged for British POWs. Prisoners who were extremely ill were often moved to hospital ships, although poor supplies prevented any difference between prison and hospital ships. American prisoners were housed in other parts of the British Empire. Over 100 prisoners were employed as slave laborers in coal mines in Cape Breton, Nova Scotia - they later chose to join the British