The Siglo de Oro, or 'Golden Age,' refers to a period of flourishing in arts and literature in Spain that roughly spans the 16th and 17th centuries. This era is characterized by remarkable achievements in various cultural fields, including poetry, drama, and painting, reflecting the socio-political climate of Spain during this time. The Siglo de Oro represents a pivotal moment in Spanish history, marked by both cultural grandeur and significant historical events.