Answer:
It decided the fate of this war
Explanation:
This was because the confederates were trying to push into Washington but the union was lucky enough to halt the advance, which if they couldn't then most likely Washington DC would've been in confederate hands. Not only that, but the battle also earned the title of being one of the most one-day bloodiest battles of the civil war.
The first major labor union was founded in 1866 by William Sylvis. It was called the National Labor Union (NLU).
It was the first national federation in the United States but it did not last. It dissolved in 1873. However, it paved the way for other labor unions and organizations.
Shi Huangdi was an effective leader because he was the first Chinese emperor that managed to unite the northern China and responsible to the first development of China's great wall.
Not only that, he is also the one that introduces China to the usage of money as a medium of transaction.