Question

What did Thomas "Stonewall" Jackson do to gain his nickname and become a noted Civil War figure?

Answer 1

During the first battle of Bull Run, Stonewall Jackson commanded a brigade of Virginian Confederate Troops that held back the Union attack. Jackson got the nickname "Stonewall" Jackson for this stand.

Explanation:

https://en.wikipedia.org/wiki/First_Battle_of_Bull_Run

Jackson also became an able assistant to General Robert E. Lee until his death after the battle of Chancellorsville. The War might have been different if he had lived.