16 states and the territory of American Samoa still observe the second Monday in October as an official public holiday exclusively called Columbus Day.
Some 244 million people worldwide have left their countries of birth – many seeking improved economic opportunities or fleeing physical danger – but the impact of out-migration has been uneven worldwide.
So far this year, Republican primaries are experiencing record turnouts, much as voting in Democratic primaries surged in 2008. But the longer-term trend in primary turnout has been down.