It was primarily" "high mountain ranges" that was the physical barrier that helped separate ancient China from Southeast Asia, since these were very difficult to traverse. <span />
True <span>
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I’m not familiar with the story of Tony Bennett and his invitation to sing the national anthem at the 1961 Preakness Stakes horse racing event, but then, Bob’s a little older than I am. However, Tony Bennett has on at least one occasion — and I suspect more — sung America The Beautiful in place of The Star Spangled Banner.
It enabled civilizations around rivers to emerge because it enabled them to grow their own food in fertile lands. It also enabled class division to emerge into those who dealt with trade and those grew food. It also enabled rise of political system like monarchies with rulers and dynasties.