I have no clue about this one
False
They had been used before that. they were simply intergrated to the computer programming system after along period. the power symbol was developed in ww2.
After the revolutionary war, the USA formed a confederacy its a loose union of independent states. hope this helps :)
The failing communist governments entrenched the idea that democracy was superior form of government. It established the United States as a global superpower both in governmental structure and military force. The failing governments also meant that Eastern Europe was much less financially stable than the rest of the world and would have to make peace with and rely on western countries to pull themselves out of debt.