Currency traders in Eastern Europe use the euro as their main reference currency, and will typically choose their trades based on what the European currency is doing relative to the dollar.

FORBES: Poland's Rate Dilemma

Before the advent of the euro, Germany's mark was Switzerland's main point of reference including a period in the 1970s when the Swiss National Bank pegged the franc against the mark to rein in a surge in the Swiss currency.

WSJ: Banks Prep for Life After Euro

Yesterday so much drama unfolded in reference to George Zimmerman, his contact with the prosecutors, letting go of his attorneys, and the main question is, where is George Zimmerman?

WHITEHOUSE: Press Briefing