The answer is: effective secondary source document"
Within 20 years, historians would have enough time to gather all facts and data from all sides that involved in historical event. All of these facts and data is useful for them to decipher how the historical events were unfolded.
This make the chart an effective source to find for information regarding the event. But, since it does not made by people who actually involved in the events, it could only be considered as a secondary source.
The primary responsibilities of the legislative branch is to make the laws.
C . transportation benefited for the invention of the flying shuttle
Answer: Yes
Explanation: They were able to gain their freedom by fighting for their nation, even though they were still hated in the end...