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Facts about modern sea-criminals who are often called "pirates".
Throughout the history times of war and poverty always had big effect on the creation of pirate activity. This effect can even today be observed of the coast of Somalia, where instable governments, civil wars and widespread poverty and crime created the need for massive pirate fleets that endanger the lives of thousands each year.
An article about the oldest pirates and how they affected great Greek, and latter Roman Empire.
An article about the short period between 1680 and 1730, when pirates were most influential in history of piracy.