Having been fascinated by history, Japanese history, the Sengoku period, and the Kakure Krishitan* (in order of increasing focus), I was excited to happen upon a book "now a major motion picture" called "Silence".
I'll supply a link for further reading, but basically when Tokugawa Ieyasu finished the unification of Japan he wanted to keep it unified and Japanese, so he and his heirs outlawed Western practices of which a growing Portuguese inspired Christian community was a part.
As you can imagine, a country that had spent the better part of fifty years in bloody civil war didn't go about this in a gentle manner.
"Silence" is a novel/movie about that time period.
* https://en.wikipedia.org/wiki/Kakure_Kirishitan
I'll supply a link for further reading, but basically when Tokugawa Ieyasu finished the unification of Japan he wanted to keep it unified and Japanese, so he and his heirs outlawed Western practices of which a growing Portuguese inspired Christian community was a part.
As you can imagine, a country that had spent the better part of fifty years in bloody civil war didn't go about this in a gentle manner.
"Silence" is a novel/movie about that time period.
* https://en.wikipedia.org/wiki/Kakure_Kirishitan