Horror on the Orient Express is set in the 1920’s in the UK, and then throughout Europe and all the way to Constantinople. While we may not all be experts in the 20’s, Wikipedia and the internet can help give the illusion that we are.
Anachronisms are going to happen, but hopefully some information will inspire you in character creation and some fun roleplay.
We are starting in January 1923, so here are a list of events which occured before and around then.
For articles on the popular culture I’ve specified the previous year, as that’s what’s most recently been in the public zeitgeist.
I assume we can all add articles, so feel free to either place or link to different articles about the culture, events and science of the early 1920’s.
There will also be a section for Mythos Lore, as and when it comes up.
Until then, here is a link to HP Lovecraft’s classic story, The Call of Cthulhu, to get you in the mood.