If you are married, then you and your spouse can file separate tax returns. The married filing separately (MFS) filing status is generally perceived as the least beneficial of all the filing statuses.
In 1783 Congress decided to create a new capital apart from any state, and in 1787 the framers of the Constitution provided for a capital district. The U.S. capital was originally Philadelphia. Washington D.C. became the new capital on July 16, 1790.
On the other hand, Washington DC, also referred to as Washington District, is the capital of the US. The Residence Act, signed on the 16th of July in 1790, approved the creation of a district that was to be the capital. It was located along the River Potomac on the East Coast of the country.