What is 'DC' in 'Washington DC'? Most Americans don't know this. What about you?

It must be quite embarrassing for most Americans who do not know what "D.C" stands for in "Washington D.C". Do you think there could be just handful of them who would not know what D.C. stands for? Well, think again.

This video tells us that there are many Americans who do not know the meaning of D.C in Washington. But what about you? Do you know the meaning of DC? Here it is: D.C stands for District of Columbia.