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.
Washington was in fact inaugurated in New York City, and he and his Vice President John Adams governed from Philadelphia, Pennsylvania. The area now known as Washington, D.C. did not become the capital of the U.S. until July 1790.