- June 7, 1880 - In the Battle of Arica the city Arica and the whole Tarapacá Region were lost to Chile after the defeat of the Peruvian Army led by Col. Francisco Bolognesi.
- June 14, 1894 - The journalist and political philosopher José Carlos Mariátegui La Chira was born in Moquegua.
- June 28, 2006 - The United States – Peru Trade Promotion Agreement (Spanish: Tratado de Libre Comercio Perú – Estados Unidos) a bilateral free trade agreement was ratified by the Peruvian Congress.