While some (though certainly not all) of the population losses in Estonia and Latvia can be attributed to the emigration of ethnic Russians, no such explanation is possible for Bulgaria, Romania, or Lithuania (which unlike the other Baltics never had a sizable ethnic Russian population).

FORBES: Russia's Population Decline in Regional Perspective

After decades of emigration and decline, Poland's Jewish population is growing again, as children sheltered in secret by gentile families during the war rediscover their roots.

ECONOMIST: New thinking and old wounds around the Auschwitz death camp

Thanks partly to the Irish diaspora, created by a century and a half of emigration, the country has far more clout than its small population might suggest.

ECONOMIST: The luck of the Irish

Only when these experiments failed did emigration (much of it paid for by landowners) increase, leading to a drop in population in the late 1800s.

ECONOMIST: Scottish history

You make no mention of the alarming population growth in the third world, which plays a leading role in driving emigration.

ECONOMIST: Huddled masses

Over the years, the emigration from the islands has been so great that the number of Cape Verdeans and their descendants living overseas now exceeds the population of those at home, so Antunes is forced to use the very simplest of methods to follow his footballers' form.

CNN: Flying high: Mourinho mentors Cape Verde's 'Special One'