An autoimmune disorder, rheumatoid arthritis occurs when your immune system mistakenly attacks your own body's tissues. Unlike the wear-and-tear damage of osteoarthritis, rheumatoid arthritis affects the lining of your joints, causing a painful swelling that can eventually result in bone erosion and joint deformity. The inflammation associated with rheumatoid arthritis is what can damage other parts of the body as well.
Slavery in ancient Rome played an important role in society and the economy. Besides manual labor, slaves performed many domestic services, and might be employed at highly skilled jobs and professions.Teachers, accountants, and physicians were often slaves.Greek slaves in particular might be highly educated.uring the Pax Romana of the early Roman Empire (1stâ2nd century CE), emphasis was placed on maintaining stability, and the lack of new territorial conquests dried up this supply line of human trafficking. To maintain an enslaved work force, increased legal restrictions on freeing slaves were put into place.
Vespasian had a limitless work force. In the building of the Colosseum the slaves undertook the manual labor such as working in the quarries at Tivoli where the travertine was quarried. Slaves would also have been used to lift and transport the heavy stones 20 miles from Tivoli to Rome.