The pus collection causes pressure on the spinal cord. The infection is usually due to bacteria. Often it is caused by a staphylococcus infection that spreads through the spine. It may be caused by tuberculosis in some areas of the world, but it is not as common today as it was in the past.
From the 1830s until 1870, the abolitionist movement attempted to achieve immediate emancipation of all slaves and the ending of racial segregation and discrimination.
In U.S. Legal History, the concept of abolition generally refers to the eighteenth- and nineteenth-century movement to abolish the slavery of African Americans. As a significant political force in the pre-Civil War United States, the abolitionists had significant effect on the U.S. legal and political landscape.