Several writers contributed to La Solidaridad over its six years of existence, like Antonio Luna, Anastacio Carpio, Mariano Ponce, Jose Maria Panganiban, Isabelo de los Reyes, Eduardo de Lete, José Alejandrino, and Pedro Paterno.
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In order to find a venue where the desire of the Propaganda Movement towards achieving assimilation can be expressed, La Solidaridad was established.
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Headed by José Rizal's cousin, Galicano Apacible, it also issued a newspaper of the same name which was published in Barcelona, Spain on February 15, 1889.
Sobre la indolencia de los filipinos ("On the Indolence of the Filipinos" in Spanish) is a socio-political essay published in La solidaridad in Madrid in 1890.
Famous examples include 'El Cangrejo' (The Crab), 'Los Zapatos Viejos' (Old Shoes), 'India Catalina', el 'Sendero Yuma' (Path of the Yuma), 'Monumento a la Solidaridad' (Monument to Solidarity), among others.