1405 Point

Seal Beginning in the 19th century with increasing mining and agriculture upstream and urban sewage and runoff downstream the water quality of the Potomac River deteriorated This created conditions of severe eutrophication It is said that President Abraham Lincoln used to escape to the highlands on summer nights to escape the river's stench in the 1960s with dense green algal blooms covering the river's surface President Lyndon Johnson declared the river "a national disgrace" and set in motion a long-term effort to reduce pollution from sewage and restore the beauty and ecology of this historic river One of significant pollution control projects at the time was the expansion of the Blue Plains Advanced Wastewater Treatment Plant which serves Washington and several surrounding communities. Enactment of the 1972 Clean Water Act led to construction or expansion of additional sewage treatment plants in the Potomac watershed Controls on phosphorus one of the principal contributors to eutrophication were implemented in the 1980s through sewage plant upgrades and restrictions on phosphorus in detergents. Secession of Southern States 6.5 Northwestern Mexico Lincoln is largely responsible for the Thanksgiving holiday.:471 Thanksgiving had become a regional holiday in New England in the 17th century it had been sporadically proclaimed by the federal government on irregular dates the prior proclamation had been during James Madison's presidency 50 years earlier in 1863 Lincoln declared the final Thursday in November of that year to be a day of Thanksgiving.:471. Nat Turner's slave rebellion (1831), Grasses of the Potomac River Basin, The diagnosis of Washington's illness and the immediate cause of his death have been subjects of debate since the day that he died the published account of Drs Craik and Brown[q] stated that his symptoms had been consistent with cynanche trachealis (tracheal inflammation) a term of that period used to describe severe inflammation of the upper windpipe including quinsy Accusations have persisted since Washington's death concerning medical malpractice with some believing that he had been bled to death. Various modern medical authors have speculated that he died from a severe case of epiglottitis complicated by the given treatments most notably the massive blood loss which almost certainly caused hypovolemic shock.[r]. Unconquerable prejudice resulting from their color they never could amalgamate with the free whites of this country it was desirable therefore as it respected them and the residue of the population of the country to drain them off. Lawrence's service as adjutant general of the Virginia militia inspired Washington to seek a commission and Virginia's Lieutenant Governor Robert Dinwiddie appointed him as a major in December 1752 and as commander of one of the four militia districts the British and French were competing for control of the Ohio Valley at the time the British building forts along the Ohio River and the French doing likewise between Lake Erie and the Ohio River. . Washington D.C. Business Directory, 8.1 Creating a "more perfect union" and guaranteeing rights, Abraham Lincoln (1860) by Mathew Brady taken the day of the Cooper Union speech. .

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