Julio was the eldest son of the editor Rafael Caro Raggio, who founded the publishing house Editorial Caro Raggio Madrid in 1917. His mother was Carmen Baroja, a Spanish writer and ethnologist who wrote under the pseudonymVera Alzate. As a child, he moved to the Navarrese town of Bera, where he spent much time with his uncle Pio Baroja. Pio took great interest and had a very important influence on his education. His early schooling was at the Instituto-Escuela de Madrid from 1921–1931. Later, he was attending the University of Madrid when the Spanish Civil War broke out. Taken by surprise, he returned to Bera. His father remained in Madrid and lost his printing press when his publishing headquarters were destroyed during a bombing raid. After the war, he returned to Madrid to complete his studies receiving a PhD in Ancient History. He worked as an assistant in the Ancient History and Dialectology departments until he became Director of the Museo del Pueblo Español. In 1947, Baroja was elected corresponding member of the Royal Academy of the Basque Language and the Real Academia de las Buenas Letras of Barcelona. In 1951, he received a grant from the to carry out ethnological research in the United States. From 1952 to 1957, he was in charge of an official Spanish exploration mission in the Spanish Sahara. He later said, "I have strange images of what I have done.... There are things which I have done in a moment of total change, such as when I went to the Sahara and wrote a book about the nomads... but I get the feeling that it was not even me that wrote it." Having grown up in an isolated community where people still believed in magic and witchcraft, he became interested in the magical arts. Before he was 20, he had spoken to elderly people who were convinced that there were "men and women who could change themselves into animals, fly, and do other things. He read numerous books, among them, the works of Pierre de Lancre. His interest, which had waned during the Spanish Civil War was renewed during a trip to London. He bought several more books and blending his earlier and later findings, he brought a more modern view of people in relation to the world around them. In his book, The World of the Witches, he believed that the witch's world, like any other social group, changes considerably from one generation to the next. He explained that this book tied social history in with anthropology. In 1952, the British Council placed him in charge of the guidance of graduates who were to study Anthropology at the University of Oxford. He also taught ethnology at the University of Coimbra in Portugal. In 1961, he was Director of Studies of Social and Economic History at the Ecole Pratique des Hautes Etudes in Paris. In 1983, was a recipient of the Prince of Asturias Awards, and in 1989, he was awarded the Menéndez PelayoInternational Prize for his research efforts in the field of Spanish ethnology. He is remembered throughout Spain. The Plaza Julio Caro Baroja in San Sebastian and I.E.S. Julio Caro Baroja schools located in Fuenlabrada, near Madrid; Getxo, Bilbao; Málaga, Andalusia and Pamplona, Navarre, are tributes to his many accomplishments and contributions to the fields of anthropology and history.