**WHAT**: The transatlantic flow of goods and people; **WHO**: after Christopher Columbus and his crew blended items, such as plants, animals, and cultures, even diseases, thrown together with those of the new world. **WHEN**: Took place in 1492 and ended until roughly 1800; **WHERE**: The Americas, Europe, Africa, and Asia were all involved; **SPECIFICITY**: from Euro to Am include corn, tomatoes, wheat, rice, sugarcane, horses, cattle, pigs, sheep, DISEASES--influenza, smallpox, measles. Am to Euro: maize, potatoes, tobacco. Afr to Am: yellow fever, malarai, sugar. Asia to Afr and Am: sugar, rice, tea; **WHY**: It resulted from Europeans' exploration, conquest, and settlement of the Americas. Set new aliments but long time deaths as a result.