Why is it usefulfor historians to craft historical narratives?

It is useful for historians to craft historical narratives to give people some idea of what things were like. Historical narratives give possible circumstances of why things are how they are. Hope this helps.

one of these is the rhoticity common in most american accents, because in the 17th century, when english was brought to the americas, most english in england was also rhotic.

the answer is use of support