Descendants of ancient Chinese philosopher Confucius have digitized books delineating their family tree, which is believed to be the world's largest, to make it easier to revise.

The original paper collection of the family tree containing a record of all 83 generations of Confucius' offspring of over 2 million people is currently 43,000 pages long and takes up 80 books, but it will be able to fit on a thumb drive after being digitized.

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