Answer:
I would say to not repeat any mistakes and to understand others familys Explanation:
This is true.
The Commodore, as he was nicknamed, got his start with ferries and then expanded into steel and other investments.
Carnegie accumulated a lot of money and gave a lot of it away but was also fairly criticized as being a robber baron.
Answer:
mark me as brainliest plz
Explanation:
Written sources help in cross-checking data or information collected from oral and other sources of historical knowledge. This help to reach reliable conclusions. Documents provide more detailed information than oral sources, e.g. dates, illustrative pictures, names of participants in events