Álvar Núñez Cabeza de Vaca (; Jerez de la Frontera, 1488/1490/1492Seville, 1557/1558/1559/1560) was a Spanish explorer of the New World, and one of four survivors of the 1527 Narváez expedition. During eight years of traveling across what is now the US Southwest, he became a trader and faith healer to various Native American tribes before reconnecting with Spanish civilization in Mexico in 1536. After returning to Spain in 1537, he wrote an account, first published in 1542 as "La relación y comentarios" ("The Account and Commentaries"), which in later editions was retitled "Naufragios y comentarios" ("Shipwrecks and Commentaries"). Cabeza de Vaca is sometimes considered a proto-anthropologist for his detailed accounts of the many tribes of Native Americans that he encountered.