Around 1212, the Spanish language began to emerge as a distinct Romance language, evolving from Latin and influenced by Arabic and other regional dialects. This linguistic development marked a significant cultural shift in the Iberian Peninsula, reflecting the blending of various cultures and languages. The birth of Spanish laid the groundwork for a rich literary tradition that would flourish in the centuries to come.

The emergence of the Spanish language provided a new medium for poets to express their thoughts and emotions, leading to the development of a vibrant poetic tradition. Poets like Berceo and later figures in the Spanish Golden Age utilized the language to explore themes of love, faith, and identity. This linguistic evolution significantly influenced the structure and style of poetry in the Spanish-speaking world.