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.
The correct answer for the question that is being presented above is this one: a. Massachusetts.. In Massachusetts colony was the first abolitionist group formed. It was in 1829 when David Walker, a freeman of color originally from the South, published An Appeal to the Colored Citizens of the World in Boston, Massachusetts.