José de Acosta, Spanish Jesuit missionary and naturalist (born 1540)

José de Acosta, SJ was a sixteenth-century Spanish Jesuit missionary and naturalist in Latin America. His deductions regarding the ill effects of crossing over the Andes in 1570 related to the atmosphere being too thin for human needs led to the modern understanding of a variety of altitude sickness, now referred to as Acosta's disease.