The National Museum housed an important group of about 1,800 artifacts produced by the Indigenous peoples of the Americas during the Pre-Columbian era, as well as Andean mummies. Gathered throughout the 19th century, the collection was based on holdings of the Brazilian royal family, with several objects coming from the private collection of Emperor Pedro II. It was later enlarged through acquisitions, donations, exchanges, and excavations. By the end of the 19th-century, the collection already had considerable prestige, being cited, on the occasion of opening the 1889 Anthropological Exposition, as one of the largest collections of South American archaeology.