Rare African script offers clues to the evolution of writing

The world's very first invention of writing took place over 5000 years ago in the Middle East, before it was reinvented in China and Central America. Today, almost all human activities—from education to political systems ...

New research questions 'whiff of oxygen' in Earth's early history

Evidence arguing for a "whiff of oxygen" before the Earth's Great Oxygenation Event 2.3 billion years ago are chemical signatures that were probably introduced at a much later time, according to research published in Science ...

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