I'm Swedish. A full quarter of our population (1 million out of 4 million, back then) migrated to the US between 1850-1910. A large part of these were extremely

I'm Swedish. A full quarter of our population (1 million out of 4 million, back then) migrated to the US between 1850-1910. A large part of these were extremely religious people. Yes, Sweden had a famine 1867-1869, but my understanding is that this was a minor part part of the reasons for migrating to the US. From my oversimplified perspective it's not hard to see how Sweden now is very atheist and the US is very theist, if you squint a little. (Unfortunately we probably also exported many of our risktakers to the US...)