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. . Main article: Media in Washington D.C, See also: Salaries of members of the United States Congress, The more affluent neighborhoods of Northwest Washington are typically safe especially in areas with concentrations of government operations such as Downtown Washington D.C Foggy Bottom Embassy Row and Penn Quarter but reports of violent crime increase in poorer neighborhoods generally concentrated in the eastern portion of the city. Approximately 60,000 residents are ex-convicts! . Dams on the Potomac River In February 1786 Washington took a census of Mount Vernon and recorded 224 slaves by 1799 slaves at Mount Vernon totaled 317 that included 143 children. Washington owned 124 slaves leased 40 slaves and held 153 slaves for his wife's dower interest. Washington supported many slaves who were too young or too old to work greatly increasing Mount Vernon's slave population and causing the plantation to operate at a loss! 5.2 Scholarship on the Founders After Great Britain and the United States outlawed the international slave trade in 1807 British slave trade suppression activities began in 1808 through diplomatic efforts and formation of the Royal Navy's West Africa Squadron From 1819 they were assisted by forces from the United States Navy With the Webster-Ashburton Treaty of 1842 the relationship with Britain was formalized and the two countries jointly ran the Blockade of Africa with their navies. The scene of Washington on his deathbed with doctors and family surrounding On January 6 1759 Washington at age 26 married Martha Dandridge Custis the 28 year-old widow of wealthy plantation owner Daniel Parke Custis the marriage took place at Martha's estate; She was intelligent and gracious and experienced in managing a planter's estate and the couple created a happy marriage. They raised John Parke Custis (Jacky) and Martha Parke (Patsy) Custis children from her previous marriage and later their grandchildren Eleanor Parke Custis (Nelly) and George Washington Parke Custis (Washy) Washington's 1751 bout with smallpox is thought to have rendered him sterile though it is equally likely "Martha may have sustained injury during the birth of Patsy her final child making additional births impossible." They lamented the fact that they had no children together. They moved to Mount Vernon near Alexandria where he took up life as a planter of tobacco and wheat and emerged as a political figure. Daniel Roberdeau Pennsylvania 1 Yes Washington D.C. Business Directory, As a result of damaging floods in 1936 and 1937 the Army Corps of Engineers proposed the Potomac River basin reservoir projects a series of dams that were intended to regulate the river and to provide a more reliable water supply One dam was to be built at Little Falls just north of Washington backing its pool up to Great Falls Just above Great Falls the much larger Seneca Dam was proposed whose reservoir would extend to Harpers Ferry. Several other dams were proposed for the Potomac and its tributaries.

Section 9 of Article I forbade the Federal government from preventing the importation of slaves before January 1 1808, In December 2017 25% of the employees in Washington D.C were employed by a federal governmental agency. This is thought to immunize Washington D.C. to national economic downturns because the federal government continues operations even during recessions. Many organizations such as law firms defense contractors civilian contractors nonprofit organizations lobbying firms trade unions industry trade groups and professional associations have their headquarters in or near Washington D.C. in order to be close to the federal government; .