From the mid-1840s to 1930, nearly 1.3 million Swedes left for the United States—placing the departures, as a proportion of a European place’s population, behind only the British Isles and Norway. “Peace, vaccination and potatoes,” as one historian put it, had caused Sweden’s population to double between 1750 and 1850. But as Swedes worried less about war, smallpox and starvation…
Source: Family Tree Magazine.com