Argentina’s first official expedition to Antarctica departed on 18 January 1904. The mission aimed to establish a permanent scientific station in the South Orkney Islands. Researchers studied meteorology, ocean currents, and wildlife. The expedition marked the beginning of Argentina’s long-standing Antarctic presence. Its work contributed to early international scientific cooperation in the region. The station later became part of Argentina’s broader research network. The departure of this expedition is seen as a foundational moment in national polar exploration.