Yes, there was a war in the city of troy but many are convinced that the greek myths behind it is a myth.
Currency yes but bankruptcy would depend on wether it is at a state or federal level.
The British blockade hurt the colonies greatly in Massachusetts because they could<span> not receive or ship goods that they needed, which hurt their economy. </span>
Adding on to the first answer ^^^
Primary sources can also be unreliable as they are biased depending on the source.
If comparing histories of different countries, they tend to describe more victories rather than failures. Also, having a picture as a primary source can be misleading as it can be interpreted in different ways. Sources written in the first person can also have their own biased from the environment the author has lived in.
