Victory over the Persians, defeat by Sparta began the golden age. It ended due to the Peloponnesian War.
European exploration, exploration of regions of Earth for scientific, commercial, religious, military, and other purposes by Europeans, beginning about the 4th century BCE.
It was the belief that it was destiny for the Caucasians to expand and to take over North America. This caused conflicts when the Caucasians wanted to take land from the native Americans.
