So, a long, long time ago, there was this place called Ruthenia. It was a really big area in Europe that's now split into parts of different countries.
Anyway, back then, the people that lived in Ruthenia were split into little parts called voivodeships. And one of these voivodeships was called Ruthenian Voivodeship.
It was kind of like a small kingdom within the bigger Ruthenia kingdom. People from Ruthenian Voivodeship had their own leaders and rules they followed, and they worked together to make sure their little part of the kingdom was running smoothly.
But eventually, the bigger kingdom of Ruthenia started to break apart and disappear. So, Ruthenian Voivodeship went away too. Nowadays, we don't really talk about it much anymore because it was a really long time ago and things have changed a lot since then.