Are people more intelligent or do we only have greater knowledge?

Interesting question.  I don't know.

Part of the problem is there is no universally accepted definition for intelligence. Some might see improvements in human thinking, compared to centuries ago, as an increase in intelligence, while others might see it as applying knowledge about what we learned from the past. 

Your question seems like a comparison if some sort, but really doesn't make sense.

More intelligent than what?

There are different definitions of intelligence. Hence that is impossible to say. Generally, we have greater knowledge than before available. However, that does not mean that people know how to apply that knowledge (correctly) and/or have the right skills.

If you mean as compared to the past we just have different knowledge. A typical teen who can navigate the internet and even code probably doesn't understand classic literature as well as an educated teen from a hundred years ago. Meanwhile satellites have made the modern study of things like geography much easier and more accurate than it would have been in 1920. 

Neither on current showing.

Neither. It's all relative and distribution. People are probably weaker, but have more productivity potential with machines.

Just a bigger library.

Recorded knowledge is part of our culture.

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Regards,

John Popelish

Maybe a bit of both. Intelligence isn't entirely a fixed trait. It does develop with practice. And we do have near universal education in every industrialized nation now.

Who is we? If u wish to find GOD you have to pray when alone and repent of sins.