Diego Abad de Santillán was a Spanish writer and political activist born in 1904. He was known for his involvement in the Spanish Civil War and his commitment to anarchism. Abad de Santillán contributed to various publications and was an advocate for social justice and workers' rights. After the civil war, he went into exile, living in countries such as France and Argentina. He continued to write and promote his political beliefs, focusing on the importance of freedom and equality. His works reflect his dedication to the anarchist movement and his critique of authoritarianism.