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13 hours ago · Another periodization divides human history into three periods based on the way humans engage with nature to produce goods. The first transition happened with the emergence of agriculture and husbandry to replace hunting and gathering as the main means of food production. The Industrial Revolution constitutes the second transition.
6 hours ago · Lord Rees of Ludlow claims most astronomers would bet that life exists on some planets other than the Earth. He also believes that alien life is a possibility which cannot be dismissed.
