Different shades, tints, and hues of green have different meanings. For example, dark green represents greed, ambition, and wealth, while yellow-green stands for sickness, jealousy, and cowardice, and olive green represents the traditional color of peace.
The Columbian Exchange is a term used to denote the world-changing exchange of agricultural goods, slave labor, diseases, and ideas between the Eastern and Western Hemispheres that occurred after the year 1492 CE.
A History of Disease, Food, and Ideas. Nathan Nunn and Nancy Qian. The Columbian Exchange refers to the exchange of diseases, ideas, food. crops, and populations between the New World and the Old World. following the voyage to the Americas by Christopher Columbus in 1492.