The Purpose was to Abolish (Get rid of) Slavery, after the civil war began the "Reconstruction Era" where many people wanted to Reconstruct America after the Civil War, Examples of this was the 13th Amendment (No more Slavery).
I believe that the first one is A because Historiography means the study of history.
Messages were sent by an electrical telegraph operator or telegrapher using Morse code.
Answer:
“Diamond and gold production are now well down from their peaks, though South Africa is still number 5 in gold but remains a cornucopia of mineral riches. It is the world's largest producer of chrome, manganese, platinum, vanadium and vermiculite,” (https://en.wikipedia.org/wiki/Mining_industry_of_South_Africa).
Explanation:
I used google
