---
title: "Maize — AP World History Definition & Exam Guide"
description: "Maize is the New World grain that spread through the Columbian Exchange, fueling population growth in Africa, Asia, and Europe. Key for AP World Unit 4."
canonical: "https://fiveable.me/ap-world/key-terms/maize"
type: "key-term"
subject: "AP World History: Modern"
---

# Maize — AP World History Definition & Exam Guide

## Definition

Maize, also known as corn, is a cereal grain first domesticated by indigenous peoples in southern Mexico about 10,000 years ago. It became a staple crop in the Americas and was a crucial component of the Columbian Exchange, facilitating the transfer of agricultural practices and food sources between the New World and the Old World.

## Related Study Guides

- [4.3 Columbian Exchange](/ap-world/unit-4/columbian-exchange/study-guide/gYhwS9yN9luYJZRLa41W)

## Review

### Related Terms

- [Columbian Exchange](/ap-world/key-terms/columbian-exchange): The widespread transfer of plants, animals, culture, human populations, technology, and ideas between the Americas and the Old World in the 15th and 16th centuries.
- Crop Domestication: The process by which wild plants are cultivated for human use, leading to changes in their genetic makeup and yields.
- Food Security: The state when all people have physical, social, and economic access to sufficient, safe, and nutritious food to meet their dietary needs for an active and healthy life.

### Key Facts

- Maize was introduced to Europe, Africa, and Asia during the Columbian Exchange, where it quickly adapted to various climates and became an important food source globally.
- In many African countries, maize became a staple crop due to its adaptability and high yield, playing a key role in local diets and economies.
- Maize cultivation led to significant agricultural innovations and changes in farming techniques across continents.
- It served not only as a food source but also as livestock feed, influencing animal husbandry practices around the world.
- Today, maize is one of the most produced crops globally and is essential for food production, biofuel production, and industrial processes.

### How did maize contribute to changes in agricultural practices during the Columbian Exchange?

Maize played a significant role in transforming agricultural practices during the Columbian Exchange by introducing new farming techniques and crop varieties across different regions. As it spread to Europe, Africa, and Asia, farmers adopted maize cultivation due to its high yield and adaptability to various climates. This led to shifts in local diets, enhanced food security, and an increase in trade among nations that embraced this staple crop.

### Analyze the impact of maize on societies in both the Americas and Europe after its introduction through the Columbian Exchange.

The introduction of maize through the Columbian Exchange had profound effects on societies in both the Americas and Europe. In the Americas, it was already a staple food for indigenous peoples but became even more integral to their agriculture. In Europe, maize provided an alternative food source that contributed to population growth and agricultural diversity. Additionally, it facilitated cultural exchanges as different societies adapted maize into their cuisines, leading to new culinary traditions.

### Evaluate the long-term effects of maize's global spread on modern agricultural systems and economies.

The global spread of maize has had lasting impacts on modern agricultural systems and economies. As one of the most widely cultivated crops today, it has driven innovations in farming practices, including hybridization and genetic modification. Economically, maize has become critical not only for food security but also for biofuel production and industrial uses. The reliance on maize has shaped global trade patterns and created economic dependencies that influence agricultural policies worldwide.