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 1852, what may have been the seminal event of the abolition movement occurred. Harriet Beecher Stowe, an abolitionist who had come to know a number of escaped slaves while she was living in Cincinnati, authored the novel Uncle Tomâs Cabin.