Answer:
American Civil War
Explanation:
The invention of the cotton gin in 1793 solidified the importance of slavery to the South's economy. By the mid-19th century, America's westward expansion, along with a growing anti-slavery movement in the North, provoked a national debate over slavery that helped precipitate the American Civil War
Answer:
In The U.S. it was first patent wire issued in 1867.
Explanation:
Barbed Wire (corrected) Was first issued in 1867 For The U.S.
Which Means At This Time this was sold and used.