A surprising map of where the world’s atheists live

[Windischer]

it certainly has roots in czech reformation movement during 15th century (utraquism & radical, extremist sects), later joined with lutheran reformation, and, after the defeat of lutherans at the white mountain during 30 years war (which did erupt in czech lands in 1618, after all), often violent and oppressive counter-reformation was conducted by the habsburgs.
by 19th century the czechs were severely alienated from the catholic church because of catholic priests practices. catholic priests were often seen as mere servants of the habsburg regime (and these accusations were too often true, sadly). after the empire disintegrated in 1918, czechs openly displayed their hostility towards catholicism.
there was also a surge in renewed utraquist movement.
and czech lutherans have fallen to atheization in 2nd half of 20th century, like many other european lutheran communities.

[Manifest Destiny]

Can anyone explain the high % of Japanese?

They finally figured out that TubGirl wasn't the messiah.

[Dál Riata]

I think Canada would be higher up. Most Canadians just don't have the balls to admit they're atheist. My family was for generations but I was still raised in the Catholic church, so I wouldn't be bullied in school (but I still was). My mother just told us it was all lies when we got home, and that the church was anti woman so don't listen to them. My sister is doing the same with her son. Several of my friends, their families were the same.

Your family don't understand Catholicism. Don't get me wrong, I don't agree with all the dogma and teaching and stuff, but 'anti-women' is a misunderstanding.