Justo Sierra

Justo Sierra Méndez (January 26, 1848 – September 13, 1912) was a Mexican prominent liberal writer, historian, journalist, poet and political figure during the Porfiriato, in the second half of the nineteenth century and early twentieth century. He was a leading voice of the Científicos, "the scientists" who were the intellectual leaders during the regime of Porfirio Díaz. Sierra's portrait appeared on the 2000 Mexican pesos banknote issued between 1985 and 1989.