El 23 de septiembre de 1868 se proclamo en Lares la independecia de Puerto Rico. Este evento es recordado en la historia como El Grito de Lares. Este movimiento fue planificado por el Dr. Ramon Emeterio Betances
Mariana Bracetti (1825–1903) was a patriot and leader of the Puerto Rico independence movement in the 1860s. She is attributed with having knitted the flag that was intended to be used as the national emblem of Puerto Rico in its attempt to overthrow the Spanish government on the island, and to establish the island as a sovereign republic. The attempted overthrow was the Grito de Lares, and Bracetti's creation became known as "The Flag of Lares".