Your story world

Every story you write has its own set of laws as absolute as physics. Your world may be in the 1880s, or the 1920s.  It is not just a matter of what kind of transport was commonly available, or what was served in a restaurant.  Your world covers everything from fashion to technology.  Nail it down. Know your world.  This is where many stories fail. In maintaining consistency in the story world.

So, think about it and be aware. Everything you write fits into a larger whole and no single element must violate the rules of your creation.