Who laid the groundwork for a new era of exploration

Which answer best explains the overall impact of the chicken on native american populations in the new world? negative; it destroyed much needed grain crops neutral; it was not well adopted by native americans insignificant; other animals were more quickly accepted positive; it brought a good source of protein to the native american diet

Compare how one's social status affect his or her opportunities in ancient greece and rome?

European expansion into africa left native regimes intact but had a strong impact on local societies what does this mean