In 1923, Brazil's Eloy Chaves Law created retirement and pension funds for railway workers, establishing a foundational element of Brazilian social security. This legislation marked a significant advancement in labor rights and social welfare in Brazil, reflecting the growing recognition of workers' needs. The law set a precedent for future social security reforms, influencing labor policies and economic development in the country.

The Brazilian Eloy Chaves Law of 1923, which created railway pension funds, framed modern Brazilian literature's exploration of industrialization and labor. Poets like Carlos Drummond de Andrade addressed themes of migration and social protection in their reflections on the changing landscape.