1 The Democratic Party has changed significantly during its more than two centuries of existence. During the 19th century the party supported or tolerated slavery, and it opposed civil rights reforms after the American Civil War in order to retain the support of Southern voters.
There are many causes of scoliosis, including congenital spine deformities (those present at birth, either inherited or caused by the environment), neuromuscular problems, genetic conditions, and limb length inequality.
1 Plague is an infectious disease caused by the bacteria known as Yersinia pestis. 2  Plague has a high fatality rate and has been described for centuries. 3  In the Middle Ages, plague was known as the Black Death and caused the death of 60% of the population of Europe.lague (Black Death) facts. 1  Plague is an infectious disease caused by the bacteria known as Yersinia pestis. 2  Plague has a high fatality rate and has been described for centuries. 3  In the Middle Ages, plague was known as the Black Death and caused the death of 60% of the population of Europe.