Final answer:
In 1915, three boys found a significant archaeological artifact, but the specific location is not mentioned in the question. Archaeological sites often reveal complex burial practices and elaborate ceremonies of ancient civilizations, which aid in understanding their cultural and social frameworks.
Step-by-step explanation:
In 1915, three boys found a copper serpent effigy with a burial at a site that represents a remarkable archaeological discovery, although the specific location is not given in the question.
Archaeology frequently uncovers astonishing artifacts and burials that provide insights into past civilizations and their customs. For example, the excavation at the Western sector of a cemetery revealed a concentration of anthropomorphic tombs with similarities to other tombs found in Barcelona and Girona. These discoveries often include signs of elaborate ceremonies, as indicated by burials surrounded by numerous human bodies and evidence of offerings of food and objects.
Notable finds include those at Mycenae, Greece, such as the Gold Cup of Nestor, which dates back to circa 1600-1500 BCE. Meanwhile, the ritual burial of children on Llullaillaco reflects the Incan tradition of child sacrifice. These findings not only have intrinsic value but also contribute to our understanding of cultural practices, mythology, and the social structure of ancient civilizations.