zyairem4a

from the Americas to Europe,Africa,and Asia - maize,potato,sweet potato,beans,peanut,squash,pumpkin,peppers,pineapple,tomato,and cocoa

from Europe Africa,and Asia - wheat,sugar,banana,rice,grape (wine),olive oil,dandelion,horse,pig,cow,goat,chicken typhus

COOROPERATION AND CONFLICT

Cooperation-technologies,transportation,weapons,and farm tools,trade,crops

conflict-land,diseases,competition for trade,differences in culture language