1. Europeans brought to America diseases such as: measles, mumps, typhus, chicken pox and smallpox. Americans weren't previously exposed to any of these diseases so it led only to death. The statistics says that over 50% of the natives have died because of the Europeans arrival. But the New World had ,,a gift'' for the Old World. It was venereal syphilis. It increased very fast in whole Europe and killed many famous family members of dynastic. 2. Pigs, cows and horses imported to America were revolutionary. Pigs eat anything, they bread really quickly and they turn into bacon. Hernando de Soto brought to America 13 pigs and after 3 years there were already 700 pigs. Americans used horses to ride on them-as we do now. They helped natives to hunt buffalo which made them far richer. 3. Food brought from the New World were for example: potatoes, sweet potatoes, corn, manioc and cassava (plants), chilies, beans, avocados, blueberries and peanuts. 4. Africans came to Amer