it's not an almanac, especially with how fast the last century has gone. but it is a good lesson in what not to do and how things went wrong, not a how-to guide with the idea that you can "do it right because you know more now" while following in their footsteps.
you're seeing a small piece of the complex machine, the variables are completely different after at most 20 years.
that's why there's one hundred and six years of writing past 1918.
