Prehistory can be described as
1.what happened last year
2.what happened millions of years ago
3.the time prior to the use of written records

The correct answer is 3) the time prior to the use of written records.

Prehistory can be described a the time prior to the use of written records.

Early humans were already on Earth but they did not know how to write so they did not leave any kind of records to be studied or interpreted. Early humans used primitive figures drawn on rocks in the caves, where they depicted animals or strange beings that have different interpretations by archeologists and historians. These pictograms and tools, weapons or ceramic found in archeological sites, help archeologists and historians to understand what could have happened in those legendary times.

it affected it because the kingdoms (with trade) slowly got richer and richer.

opinion because one person might not like silk