Why was it difficult to study in prehistoric history?

Studying prehistoric history is challenging primarily due to the lack of written records, which makes it difficult to reconstruct events and understand the cultures of early human societies. Archaeologists rely on artifacts, fossils, and environmental evidence, but these can be incomplete or open to interpretation. Additionally, the vast timescales involved mean that many findings can be subject to erosion, destruction, or misinterpretation over time. This combination of factors leads to an incomplete and often speculative understanding of prehistoric life.