history between the death of Alexander the Great in 323 BC and the emergence of the Roman Empire
Greek influences: Democracy, town meetings to discuss public affairs, make and pass laws
Roman influences: Republic, representative, senate, president
Generally speaking, both the Enlightenment and American Revolution changed the way people viewed their relationship to their rulers in that they began to question the ultimate power and supremacy of a monarch, simply because he or she was born into the position.
The parts that make up a nucleus are particle physics, protons, and neutrons.
The end of WWII introduced the baby boomer generation. This happened all over the world, but mainly in the West. The elevated birthrate in the US added about 50 million babies by the end of the 1950s. Hope this was it.