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.
List of capitals in the United States. Washington, D.C. is the current Federal capital city of the United States, as it has been since 1819. Each U.S. state has its own capital city, as do many of its Insular areas.