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Encyclopedia, known as dictionaries of a hundred subjects, have been published in Japan for more than a thousand years

[UPDATED: 3-22-2018]
In Japan encyclopedia are called hyakka jiten (百科事典), which literally means “dictionary of a hundred subjects”. They have been compiled and published since Japan’s Heian Period (794-1185). 

The first Japanese encyclopedia is said to be the Wamyo ruijusho published in 938. Other Japanese encyclopaedia are considered its descendants. It survives today in its 10 volume and 20 volume formats.
Encyclopedia, known as dictionaries of a hundred subjects, have been published in Japan for more than a thousand years Posted by Richard Nathan