A-life expectancy because of the bad working conditions it caused disease
A historian would first look at the reliability of a source - when it was published and what was happening at the time (context), who wrote it and their qualifications, any bias the author may hold, whether author sources corroborate the source, whether the author has used references, whether the source provides evidence, who the source is representative of and whether the source provides a balanced perspective
Answer:thrombotic & embolic
Explanation:
Some countries did not like the countries we were with an alliance with, so they would attack them and we would attack the country who did it, and so on.
