Here's a travel film from Copenhagen in 1937. The first third and the last third are all about our bicycle culture.
What's interesting to note is that in the 1960's and 1970's, car culture was killing off cycling in the city and it was first really in the early to mid 70's that we started giving it a heart massage to get it back up to speed. We've never achieved these levels since, though.
But we're working on it.
Regarding the film, there's a bit of outdated speak that rings quite racist in our modern ears.
The speaker mentions also that there is one bicycle for every three citizens. These days there it is 1:1 and then some.
After the first couple of minutes there is a section about Copenhagen and Denmark in general and then we return to "a demonstration of bicycle traffic that is unparalled in any of the world's great cities." It starts at about 6 minutes in.
Beautiful footage and watch for the sofa being transported on a cargo bike!