Francisco José de Caldas, Colombian naturalist, executed by royalists in the war of independence (d. 1816)
Francisco José de Caldas (October 4, 1768 – October 28, 1816) was a Colombian lawyer, military engineer, self-taught naturalist, mathematician, geographer and inventor (he created the first hypsometer), who was executed by orders of Pablo Morillo during the Spanish American Reconquista for being a forerunner of the fight for the independence of New Granada (modern day Colombia). Arguably the first Colombian scientist, he is often nicknamed "El Sabio" (Spanish for "The learned," "The sage" or "The wise").