The Catalan politician Francesc Pi i Margall became the principal translator of Proudhon's works into Spanish and later briefly became president of Spain in 1873 while being the leader of the Democratic Republican Federal Party. For prominent anarcho-syndicalist Rudolf Rocker, "first movement of the Spanish workers was strongly influenced by the ideas of Pi y Margall, leader of the Spanish Federalists and disciple of Proudhon. Pi y Margall was one of the outstanding theorists of his time and had a powerful influence on the development of libertarian ideas in Spain. His political ideas had much in common with those of Richard Price, Joseph Priestly ["sic", Thomas Paine, Jefferson, and other representatives of the Anglo-American liberalism of the first period. He wanted to limit the power of the state to a minimum and gradually replace it by a Socialist economic order." Pi i Margall was a dedicated theorist in his own right, especially through book-length works such as "La reacción y la revolución" ("Reaction and Revolution") in 1855, "Las nacionalidades" ("Nationalities") in 1877 and "La Federación" ("Federation") in 1880.