In what year did piratical activities in the Barbary states cease?

Piratical activities in the Barbary States, particularly by the Barbary pirates, largely came to an end around 1830 due to various military actions led by European powers and significant political changes in North Africa. The period of intense piracy was characterized by the Barbary States—primarily Morocco, Algiers, Tunis, and Tripoli—acting as sovereign entities that engaged in the practice of piracy and the capture of vessels for ransom. The cessation of these activities can be attributed to the increased naval military presence from countries like the United States and various European nations, which aimed to suppress piracy and secure safe passage for their maritime commerce.

By 1830, the combined effects of military campaigns, changing political dynamics, and international treaties significantly reduced the power and influence of these pirates, leading to a decline in their activities and effectively ending the era of Barbary piracy. Thus, 1830 marks a key turning point in history concerning the resolution of piratical activities in the region.