<span>On August 28, 1963, more than 200,000 Americans gathered in Washington, D.C., for a political rally known as the March on Washington for Jobs and Freedom.
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By looking at the 1849 poem, one reason that London's drinking water was polluted was because the Thames River was polluted. The river was polluted because it was filled with sewer, factory waste, and sink waste. Officials were paid off to ignore all of the pollution being dumped into the Thames River.
