The artifacts show similarities in artistic styles and techniques, indicating a shared artistic tradition and exchange of artistic knowledge.
The artifacts depict similar symbols and motifs, suggesting a common system of beliefs and religious practices.
The artifacts show evidence of technological exchange, such as the use of similar tools and techniques, indicating a sharing of knowledge and skills.
The artifacts show similarities in their function or purpose, such as tools for farming or hunting, suggesting a shared understanding of practical needs and solutions.
The artifacts show evidence of long-distance trade, for example, the presence of materials or objects that were not locally available, indicating a network of exchange and interaction among civilizations.