What weapon played a major role in the defeat of the inca by the spanish? hurry up

How and why did many southerners attempt to stop the laws congress passed?

Why did the united states pass the neutrality acts

After the success of the sputnik launch, the united states feared that they would never be able to launch their own satellite, the ussr had used technology developed by the united states, the soviets had superior nuclear capabilities, that any future us satellites would not be as successful.