Porcine reproductive and respiratory syndrome virus. For the Marvel Comics Superhero, see Blue Ear (comics). Porcine reproductive and respiratory syndrome virus (PRRSV) is a virus that causes a disease of pigs, called porcine reproductive and respiratory syndrome (PRRS), also known as blue-ear pig disease (in Chinese, zhÅ« lÃ¡nÄr bÃ¬ng è±¬èè³ç).
Spanish: Enslaved Africans in Mexico, 1537 (PDF) Europeans' enslavement of Native Americans began with Columbus. As the governor of Hispaniola, he forced the Taino Indians to labor in the Spanish fields and mines, and he brought Taino slaves to Spain on his return journeys.
It was the first genocide carried away on the Hispaniola. The Native Americans people were drastically wiped out. In 1942, the population was estimated about 8,000,000. In the year 1942, Christopher Columbus, the explorer from Italy sailed 3 old ships to land up in India. Although there was Marco Polo and Norsemen who already sailed years before but no sailor wanted to sail for the unknown places.