Answer:
The Emancipation Proclamation was an executive order issued by Abraham Lincoln on January 1, 1863. It proclaimed the freedom of slaves in the ten Confederate states still in rebellion. It also decreed that freed slaves could be enlisted in the Union Army, thereby increasing the Union's available manpower.
Explanation:
I THINK THIS IS THE RIGHT ONE
Thomas Jefferson is the answer
Steel. Andrew Carnegie used it to mass produce steel cheaply and efficiency.
It was something about the mexican revolution.
