Martin Luther Kind Jr or MLK Jr was a social activist as well as a Baptist minister. Martin Luther King Jr played an important role in the American Civil Rights movement. He was born on January 15, 1929. Unfortunately MLK was assassinated in April 4, 1968. He died at the age of 39. 
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Government subsidies for federal elections, originally proposed by President Roosevelt in 1907, began to take shape as part of the 1971 law, as Congress established the income tax checkoff to provide for the financing of Presidential general election campaigns and national party conventions.
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The Underground Railroad is not a railroad that is underground, instead, it is referring to a secret passage for slave escaping in safe houses. The conductor of the Underground Railroad could be the person who helps the slave escape, the lines could refer to the road or the passage which the slaves escaped from one safe house to another, the station could refer to the stops they make in the safe houses, and the freight may refer to the slaves that are escaping.
        
             
        
        
        
Taxes are usually increased whenever it is necessary to increase the country's spending. The spending happens for various reasons from war, to rebuilding infrastructure on a major level, or even if the politicians are corrupt and plan to eventually steal money from the people.