The Battle of Las Piedras took place on 25 January 1839 during the Argentine Civil Wars. Forces loyal to the Buenos Aires government faced troops from the Province of Entre Ríos. The conflict reflected the broader struggle between centralist and federalist factions. The battle ended with a victory for Buenos Aires. The outcome strengthened government authority during a turbulent political period. Historians view the battle as part of the long process of shaping national political identity. Its date remains significant within the timeline of the civil wars.
