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.
Harriet Tubman and Sojourner Truth, two Christian women among others, also participated in the abolitionist movement. About 1767, Denmark Vesey was born on the island of St. Thomas in the Danish West Indies, which today is the U.S. Virgin Islands.