For the first time since 1976, the Canadian dollar has achieved parity with the American dollar. What are the factors behind the slide of American currency?

American $1 bills made of flimsy paper

Too many other nations going to night school and bettering their economies

Highly effective Visa commercials that paint cash in bad light

Only fitting tribute to Gerald Ford anybody could come up with

Currency traders starting to appreciate pictures on Canadian bills

Rampant abuse of retailers' "take a penny, leave a penny" jars

China finally collected them all