Abacus was invented in China sometime between ………..
A) 350-1000 BC
B) 1000-200 BC
C) 1000-500 BC
D) 750-1000 AD
Correct Answer:
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Q5: The Yellow River Valley culture is named
Q6: The Yangshao culture is well known for
Q7: The documented history of China extends continuously
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Q11: Which is the earliest written text of
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