### How did Dewey come up with the Dewey decimal system?

the Dewey system was made by melvil Dewey in insperation of his late grandfather. he was a very clean man but did no know the was to sort his books. so he came up with a system to catorgarize his books. he then wanted to make it more precise so he came up with the decimal system so he could catorgarize them to small amounts.