Product of the Cold War it seems,
On 1949, US government received an official confirmation that the Soviet Union had developed a Nuclear bomb.
To maintain the upper hand, President Truman approved the development of the hydrogen Bomb, an equivalent to 500 Atomic Bombs.
Manhattan District the trinity test of the Manhattan project on 16 July 1945 was the first detonation of a nuclear weapon Active 1942 to 1946 disbanded 15 August 1947 Country United States United Kingdom Canada
There was more than one technology that was developed at the time, but one technolgoy that surely made a strong impact and also enabled Europe becoming the dominant military force was the invention and perfection of military tactics together with muskets and cannons. This made them practically unstopable against any native population around the world.
Answer:
Can you copy and paste the question so i can see it.
Explanation:
It sure isn't D. One of the reasons the South had trouble during the civil war is that she didn't have enough rail lines. Horses did much of the work the rails did.
The rails existed in 1865. There were lots of them. Trouble was they were mostly in the North.
The large population centers were largely in the east. Shear numbers would make rails feasible. Answer
The West did oppose the rails to some extent, but industry (like cattle and mining) wanted more rails. Most of the time the opposition came for economic reasons.