http://europa.eu.int/comm/public_opi..._report_en.pdf
-pg. 9 (PDF page 11)
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You know, after reading how they perform their surveys and the questions asked, survey size, etc., I'm actually quite satisfied with it (that rarely happens by the way)
Anyway, it's a really interesting map. If you pretended that it was smooth (not broken down country by country), I'm sure there is some great history that can explain the breakdown.
I haven't really looked into this area yet, so any hypotheses I could come up with would suffer from a lack of research, but does anyone have an idea
why theism is declining in Europe/worldwide?