* How did ppl before information age do self studies and researches on a subject when there is not google, guides and indices maintained by an online community, and especially when they dont have access to tutors and experts who are proficient in the areas? For example if one wanted to learn Latin or French by himself in 1900s. Or when someone who wanted to learn maths or history by himself. How does he know what to read, how to practise and apply the skills and knowledge etc..
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>How did ppl before information age do self studies and researches on a subject when there is not google, guides and indices maintained by an online community, and especially when they dont have access to tutors and experts who are proficient in the areas? For example if one wanted to learn Latin or French by himself in 1900s. Or when someone who wanted to learn maths or history by himself. How does he know what to read, how to practise and apply the skills and knowledge etc..
They went to a library.
An index is not something invented by Google. Libraries are not random hoards of books. The most important aspect of a library is the fact that it [**indexes knowledge**](https://en.wikipedia.org/wiki/Library_catalog).
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