(D) The 1800's were the time of the Industrial Revolution in Western Europe, technology spread like wildfire.
Is this a multiple choice question?
The correct answer is Maryland
After Austria-Hungary declared war on Serbia on July 28, 1914, there was a flurry of activity across Europe. The first, and arguably most important, event happened on the same day. Russia, Serbia's main ally, mobilized its military and prepared to defend Serbia.
The northerners didn't need slavery because their main economy is manufacturing at factories.
Because they didn't have anything to do with slavery, they viewed it with a critical eye.
The southerners had slavery because they had giant plantations to farm cash crops. The soil was futile and had a suitable climate.