Skin is the outermost layer of the human body, which serves as a barrier between the internal organs and the environment. It helps to regulate body temperature, protect the body from harmful substances, and provide sensory information through touch and temperature receptors. Skin is made up of three main...

Battle of Las Navas de Tolosa: Armed confrontation that took place on July 16, 1212, near Jaén, in the south of present-day Spain, in the context of the Christian Reconquest of the Iberian Peninsula.