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.
Ironically, Ostia was to play a major part in the downfall of Rome when Alaric the Goth captured Ostia in AD 409 knowing that this would starve Rome of much needed food. The Romans did what they could to make sea journeys safe â lighthouses were built as were safe harbours and docks. The Roman Navy did what it could to make the Mediterranean Sea safe from pirates. The Romans made trade as easy as possible. There was only one currency used and there were no complicating customs dues. Trade was also encouraged by many years of peace within the Empire. Trade was vital to the success of the Empire. When the Empire collapsed, trade throughout the lands that had once made up the Roman Empire, also collapsed.