1801    First Barbary War: The Barbary pirates of Tripoli declare war on the United States of America.

1801    First Barbary War: The American schooner {{USS|Enterprise|1799|6}} captures the Tripolitan polacca ''Tripoli'' in a single-ship action off the coast of modern-day Libya.

1804    Forces sent by Yusuf Karamanli of Tripoli to retake Derne from the Americans attack the city.

1805    First Barbary War: United States Marines and Berbers attack the Tripolitan city of Derna (The "shores of Tripoli" part of the Marines' hymn).

1912    Italy takes possession of Tripoli, Libya from the Ottoman Empire.

1943    World War II: Troops of Montgomery's 8th Army capture Tripoli in Libya from the German-Italian Panzer Army.