Wysteria is the result of a card with the Suit of Diamonds being drawn by Janus, when Tabel was erased from existence, and replaced with one of five new worlds with new opportunities. In Wysteria's case, the upper hand was given to the people.

In Wysteria, the main currency is Corners, magic catalysts in the shape of coins, either copper, silver, or gold. The "common" language is English I mean, Wysterian. Danish is an ancient language for spellcasting. The most widespread religion is Crusteceanity. The sun and moon both have faces for stupid reasonsWe needed an in-world reason as to why a 10th dimensional being - with the ability to (dis)appear when no one's looking - was somehow held hostage..., lol, it's what it's.

In present day, trains have been around for 100 years. Wars are raging, because of course. Magic is suppressed as licenses are now required to practice it legally. People of magic innate species are generally miffed by that, and consider it a result of humans throwing a hissy cuz they're magicless clowns...

• Past is 1821 or earlier. The sad anime pasts, and stuff.
• Present is between 1822 to 1834. The main """story,""" or whatever, LOL. Information refers to this time period, unless otherwise stated.
• Future is 1835 or later. Happily ever after.

A more thorough (but still work-in-progress and subject-to-change) timeline can be found here.