Where Did Corn Come From?

Subtitle: The History of Co-evolution Between Humanity and Grain, Starting from the Wild Species 'Teosinte'

Corn Tetralogy Part 1

Although corn is a natural object, it cannot exist without humans.

Therefore, this is not only a history of plant evolution but also a history of human civilization.

Prologue | The Mystery of the Gold Standing in the Field

Corn is a staple that appears on our dining tables as a matter of course.

However, its appearance is far too 'artificial' and is far removed from wild plants.

・The kernels are exposed, and the seeds cannot disperse on their own

・Each kernel is large, and it can only be grown by human hands

・The stalk is thick, resistant to falling, and specialized for cultivation

Where did this 'excessively human' crop come from?

In this article, while tracing the origins of the strange crop called corn,
we will approach the deep relationship ofco-evolutionbetween humanity and grain.

Chapter 1 | Who is the Wild Ancestor 'Teosinte'?

The origin is about 9,000 years ago. Around the Balsas River basin in present-day southwestern Mexico.

Humanity encountered a certain wild plant there.


Its name is 'Teosinte'—

a wild plant of the grass family, and the species considered closest to the ancestor of modern corn.

However, it looks nothing like today's corn.

・The number of kernels is small, hard, small, and difficult to eat

・The outer skin is hard, and it has a structure that naturally drops seeds to the ground

In other words, wild teosinte had no appeal as 'food'.

Then, why was this plant able to eventually become a staple food that moves the world?

Chapter 2 | 'Edible Mutations' and Unintentional Selection

The turning point was an 'accidental mistake' in the natural world.

Very rarely in teosinte,

・seeds became exposed

・kernels became numerous and soft

—such 'mutant strains' occurred.

And humans, out of whim or convenience,
only'selected and replanted'

those mutant strains.
By repeating this act over thousands of years,

the existence called 'corn' was eventually established.It was a life form born not throughnatural selection but 'cultural selection'.

Humans did not intend to create 'corn' from the beginning.

They just chose things that were a little easier to eat than yesterday, a little more fruitful than yesterday, and a little easier to handle than yesterday.

That small choice created a plant that could not exist in the wild thousands of years later.

Chapter 3 | A Crop 'Created and Raised by Humans'

The important point here is that corn cannot reproduce on its own.

・Seeds do not fall

・Germination also requires human intervention

・It is weak against pests and weeds, and maintenance is essential

In other words, corn is a 'plant that cannot exist without humans'.

Conversely, humanity has also been nourished by corn and has built civilization.

This relationship is truly co-evolution.

Humans grow corn, and corn grows humans—

it is one of the longest and deepest 'complicit relationships' in human history.

Chapter 4 | The Explosive Expansion of Corn and Civilization

Corn grows in both highlands and dry lands.

Because of its high tolerance, it spread throughout North and South America, centered on Mesoamerica.

• Maya civilization, Aztec civilization, Inca Empire—
all major civilizations in Central and South America have 'corn' as their foundation

• And since the 15th century, because the Spanish brought it back,
it spread all at once to Africa, Europe, and Asia

In modern times, corn is one of the world's three major grains.

But its starting point was a 'grass encountered by chance'.

Corn is not a crop that evolved in a single straight line.

It started in southwestern Mexico, and while incorporating hybridization with highland teosinte, it changed into a stronger, wider, and more civilization-oriented crop.

Final Chapter | Corn is the 'Shadow of Humanity'

Now, corn is used not only for food but also for feed, fuel, and industrial raw materials.

But at its root lie human desire, wisdom, chance, and prayer.

• Corn began in mythology, moved politics, supported industry, and became a mirror reflecting humanity.

It is an 'artificial flower' that bloomed on the boundary between nature and culture.

It cannot grow on its own, but humans also could not have built civilization without it.

When we put this golden kernel into our mouths,
it may not just be 'food', but we are taking into our bodies the 'memory of co-evolution' that spans 9,000 years.

And this co-evolution eventually created myths, supported empires, became the fuel for capitalism, and changed into the invisible foundation of modern civilization.

Final Proposition

Corn is evidence of humans changing nature, and at the same time, it is evidence of humans being changed by nature.

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