I recently noticed a very interesting relationship between the 2012 U.S. presidential election results and the U.S. Civil War North/South divide. Things that make you go hmmm!
U.S. Map showing the results of the 2012 U.S. presidential election. Red states are Republican wins and Blue states are Democrat wins.
U.S. Map showing free (blue) and slave (red) states as of 1850. Green line is the 1820 Missouri Compromise Line which outlawed slavery in all future states (gray) to the North and preserved the peculiar institution to the South.