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.
As a result of the abolitionist movement, the institution of slavery ceased to. exist in Europe and the Americas by 1888, although it was not completely. legally abolished in Africa until the first quarter of the 20th century.