Looking back to the Vintage School Days, we can immediately notice how much has changed in the learning process. Going back several decades, the books were much more basic and compact. The pages were stuffed with small font's in order to cram as much information in as possible. In the Vintage School Days, there was little to no research about the human brain. Scientists did not understand how children learned, and how they could further improve their learning experience.
It was used by children of 10 and 11 years old
As you can probably notice today, the ability to contrast between different colors in a book is a great visual aid.
While times have changed, and learning resources have been more extensively developed for the better, some material from the Vintage School Days are still extremely similar to what we have available to us today.