Everything Everywhere Daily: History, Science, Geography & More - The Persian Gulf Explained: History, Oil, and Global Importance
Episode Date: March 18, 2026For thousands of years, a narrow body of water between Arabia and Persia has shaped the fate of empires, economies, and the modern world. The Persian Gulf has been a crossroads of trade, a cradle o...f ancient civilizations, and today, the center of global energy and geopolitical tension. Control over its waters has sparked conflict, diplomacy, and immense wealth. How did this relatively small region come to wield such outsized influence on world history? Learn more about the Persian Gulf and its history on this episode of Everything Everywhere Daily. Sponsors Quince Go to quince.com/daily for 365-day returns, plus free shipping on your order! Mint Mobile Save 50% on Unlimited premium wireless plans starting at $15/month at MintMobile.com/EED Audible Listen to Project Hail Mary Audible.com/hailmary Fast Growing Trees Get 20% off your first purchase when using the code DAILY at checkout at fastgrowingtrees.com/daily Subscribe to the podcast! https://everything-everywhere.com/everything-everywhere-daily-podcast/ -------------------------------- Executive Producer: Charles Daniel Associate Producers: Austin Oetken & Cameron Kieffer Become a supporter on Patreon: https://www.patreon.com/everythingeverywhere Discord Server: https://discord.gg/Ds7Rx7jvPJ Instagram: https://www.instagram.com/everythingeverywhere/ Facebook Group: https://www.facebook.com/groups/everythingeverywheredaily Twitter: https://twitter.com/everywheretrip Website: https://everything-everywhere.com/ Disce aliquid novi cotidie Learn more about your ad choices. Visit megaphone.fm/adchoices
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For thousands of years, a narrow body of water between Arabia and Persia has shaped the fate of
empires, economies, in the modern world. The Persian Gulf has been a crossroads of trade,
a cradle of ancient civilizations, and a center of global energy. Control over its waters has
sparked conflict, diplomacy, and immense wealth. But how did this relatively small region come to
wield such outsize influence on the world? Learn more about the Persian Gulf and its history
on this episode of Everything Everywhere Daily.
Do you ever climb into bed ready to sleep only to have your mind start racing the moment your head hits the pillow?
Thoughts bouncing around, replaying the day or jumping ahead to tomorrow?
That is exactly why Catherine Nikolai created Nothing Much Happens.
Each episode is a gentle, cozy bedtime story where, well, nothing much happens.
No drama, no tension. Nothing you need to follow closely.
Just soft narration, calming repetition, and soothing sensory details designed to help your mind slow down and your body relax.
It's not about entertainment.
rest. And millions of listeners around the world use it every night to quiet their thoughts and
finally fall asleep. If you've ever struggled to shut your brain off at night, this might be
exactly what you've been missing. You can listen to Nothing Much Happens wherever you get your
podcasts. Episodes are every Monday and Thursday. Any discussion of the Persian Gulf should start
with the name itself. Historically, the name Persian Gulf has been used for over 2,000 years
appearing in ancient Greek, Roman, and Islamic texts, as well as in most of the name,
international maps and organizations today. However, in the 20th century, several Arab states began
promoting the term Arabian Gulf as part of the rise of Arab nationalism and regional identity.
But for the purpose of this episode, I will be sticking with Persian Gulf as it's the widely
accepted and historical term. The Persian Gulf is a small Indian Ocean version of the Mediterranean Sea,
meaning it's a body of water nearly completely surrounded by land. Water from the Indian Ocean
enters the Gulf through the vital choke point the Strait of Hormuz, which, using the Mediterranean
analogy, is like the Strait of Gibraltar. The Strait is the Gulf's only connection to the Indian Ocean,
and at its narrowest point is just 21 miles wide. As it's the only access point to the Gulf,
the Strait of Hormuz is one of the world's most critical trade choke points. I actually visited the
Musendam Peninsula in Oman and was able to look out and see Iran right across the strait.
The Persian Gulf is among the world's most saline bodies of water.
The high salinity is caused by high temperatures and low water circulation,
which leads to high evaporation rates, which increases salinity.
Shallow depths and summer water temperatures that reach nearly 100 degrees Fahrenheit or 37
degrees Celsius pose challenges for marine life.
Yet despite harsh conditions, the Persian Gulf supports resilient coral systems that do not
bleach at high temperatures.
biologists are trying to understand why these specific corals don't bleach under such pressure.
What they learn in the Persian Gulf could rewrite survival strategies for coral systems worldwide.
In addition to its flourishing coral systems, the Gulf is home to thriving mangrove forests
and crucial seagrass meadows that devour carbon dioxide.
The Persian Gulf is surrounded by more than a hundred million people who depend on it for water.
The region's lack of fresh water requires countries bordering the Gulf,
to implement desalinization strategies.
There are nearly 500 desalinization plants along the Persian Gulf coast, supplying water for both drinking and agriculture.
Centrally located in the Indian Ocean Basin, the Persian Gulf has been economically important since the dawn of near-eastern civilization.
The earliest maritime trade and world history is linked to the Persian Gulf, which has long attracted sailors and traders.
The Gulf's unique enclosed geography produces calm lake-like waters,
The tides are also less extreme than those of the open sea.
Early mariners from Mesopotamia developed ships that were suited to these waters,
and as they gained confidence, they eventually took them through the Strait of Hormuz into the Arabian Sea.
Sailors entered the Arabian Sea, part of the Indian Ocean, where they developed coasting techniques,
sailing close to the shoreline rather than the open sea for safety and navigation.
This skill was essential in the region before the Indian Ocean monsoon wind patterns were understood.
This growing mastery of trade meant that by 3,000 BC, the Persian Gulf had become a primary
artery of global maritime trade.
On the western coast of the Gulf, the trading ports of Dilman and Oman served as the
Gulf's middlemen.
In this system, they were intermediaries.
Luxury goods, grain, and copper traveled from Dilman and Oman up to Susa in Iran,
and from there these items removed overland to the urban centers of Mesopotamia.
As centuries past and new civilizations emerged, the importance of this region expanded,
with urban centers connecting to Egypt and the Mediterranean basin.
The establishment of the Silk Road enhanced the Gulf's commercial significance,
bringing even more trade to the region.
Silk Road caravans increased trade and created an insatiable demand for silk,
linking the Near East to the Chinese world.
As a crucial trading hub and economically valuable region,
it often saw political control change hands.
This trend continued until the region was unified under the Abbasid Caliphate in the 8th century.
Despite the political shifts in the Persian Gulf, which saw the rise of kingdom, city states,
sultanates, and eventually caliphates, the principle of free trade remained constant.
Before European dominance of the region, trade in the Indian Ocean and the Persian Gulf followed
the principle of Mare Libram.
This Latin term means that the region.
the oceans are open to navigation and trade by all.
This principle enabled the region to flourish and remain in place until the year 1507.
That year, the arrival of the Portuguese disrupted this long-established practice,
which had been thriving since the very earliest urban communities emerged in the Near East and the Indian Ocean Basin.
Portugal controlled trade through the Cartaz system,
which required ships to obtain a paid permit from Portuguese authorities to sail and trade.
The free trade tradition had been replaced by strict fees and rigorous Portuguese naval enforcement.
To the people of the Gulf, this was institutionalized piracy by the Portuguese.
The Cartaz system conflicted with the region's long-standing trade customs.
The Portuguese system also violated traditions associated with the Islamic haj.
As part of their faith, every Muslim should, if they can, complete the Hajj, a pilgrimage to Mecca at least once in their lifetime.
The Hajj was a major source of maritime traffic, as it brought the faithful to the gateway ports of Basra and Saraf.
The Portuguese disruption of the system not only violated long-held beliefs about pilgrimage travel,
but also created the foundation for a major international incident.
In 1613, as the English, under the British East India Company, were growing in influence,
they began to challenge the fading Portuguese for influence in the Indian Ocean.
The Rahimi was a ship.
owned by the mother of the Indian Mughal Emperor Jahangir, and was destined for Mecca and the Persian Gulf.
The Rahimi carried cargo headed for the port city of Suraf, as well as Muslim pilgrims, who were headed to Mecca.
The ship carried the prokervar Khartaz authorization, yet the Portuguese stopped it, looted its contents, and imprisoned the pilgrims, taking them back to India.
The Mughal emperor was outraged by the injustice to a ship under his mother's name and Portuguese protection.
Following the incident, the Mughals shifted their alliance to the British East India Company.
This shift in allegiance helped expand the British East India Company's influence,
leaning eventually to its control over the Indian subcontinent.
The Rahimi incident soured attitudes towards the Portuguese.
Ultimately, Portuguese influence in the region suffered a mortal blow in 1622 at the Battle of Hormuz
when a coalition of the British and the Safavid Empire ousted the Portuguese from the Persian Gulf.
Over the next several centuries, the Persian Safavids and the British cooperated in control of the Gulf region.
Unlike the Portuguese, the British welcomed local engagement in trade, expanding the potential for new luxury items in European markets.
The British negotiated treaties with sheikhs in the Gulf region in order to control regional trade.
The region had historically been an important trade hub for the global pearl industry as well.
The Persian Gulf holds a unique place in this industry.
as the high salinity and warm environments of the Gulf produced some of the world's finest pearls.
During the golden age of the pearl trade, Persian Gulf pearls were in high demand around the world
and were the Gulf's primary export.
Until 1908.
That year, an event took place that changed everything.
British geologists discovered oil along the Persian side of the Gulf near the town of Masjid Soleiman.
This discovery came at a crucial moment, as the growing Japanese pearl industry had diminished
the region's influence in the pearl trade. The discovery marked a turning point, not just in the
history of the Persian Gulf, but in world history. After these discoveries, oil interests in the
Gulf moved at a furious pace to meet demand from the expanding automobile and aviation industries.
By 1930, vast oil reserves had been discovered on both sides of the Persian Gulf.
During this period, the region's oil resources were exploited by the world's seven largest oil companies.
These European and American companies signed contracts with local leaders, assuming control of their vast oil reserves.
The foreign ownership of oil contracts stalled nation building in the Gulf, because local leaders were willing to sign away their greatest asset which perpetuated Western economic dominance.
This pattern continued largely unchecked until the year 1960.
the year OPEC was formed, and Persian Gulf nations began reclaiming control over their own oil.
OPEC's founding members, Iran, Iraq, Kuwait, and Saudi Arabia, knew that they had to control their
oil resources, or else they would remain subservient to Western interests.
The successful shift of the region's oil reserves to sovereign nations represented a seismic moment
for the Gulf states. As the Gulf nations began to assert control over their greatest resource,
they not only became some of the wealthiest nations on the planet, but they also became a political
force. As the region gained greater control over its oil, it also gained the ability to influence
global oil prices by carefully managing production levels. The Gulf states began to wield this economic
influence in the wake of the 1973 Yom Kippur War. In response to American support for Israel
in the war, the Gulf states placed an embargo on oil to the U.S., accompanied by production cut,
of 5% a month.
These actions reduced supply, which led to soaring gas prices and severe shortages that prompted
Americans to have to wait for hours in line at gas stations.
The move also signaled the region's power over the flow of the world's oil.
The Persian Gulf and the Strait of Hormuz are among the world's largest oil trading choke
points today, handling approximately 20 million barrels of oil per day, eclipsed only by the
Strait of Malacca, which handles 23 million barrels per day. And most of the oil going through
the Strait of Malacca has to first go through the Strait of Hormuz. This gives the region
significant power over the global economy. Any adjustment in production and shipping has dramatic
impact on gas prices and global shipping costs. Even the smallest changes in oil prices can
significantly affect the price of everyday items, if for no other reason, then everything needs to be
transported. Because of its geopolitical significance, it's become a persistent issue in global politics.
President Jimmy Carter outlined the position of the United States towards the region in response to
the 1970s oil crisis. The Carter doctrine states, quote,
Any attempt by any outside force to gain control of the Persian Gulf region will be regarded as an
assault on the vital interests of the United States of America. And such, an assault will be
repelled by any means necessary, including military force.
End quote.
During the Iran-Iraq War of the 1980s, the two nations engaged from what became known
as the Tanker War, which involved both sides attacking each other's oil tankers to
harm the other economically.
Fearing a global disruption of the world's oil supply, a broad coalition of Western
navies began patrolling the Persian Gulf to guarantee the flow of oil, a move spurred
by Iraq's attack on the major Iranian oil center of Karg Island.
Karg Island is a small island 15 miles off of Iran's coast in the Persian Gulf, which
serves as the primary terminus for Iran's oil shipments.
In recent decades, Gulf states have used their oil wealth to invest heavily in sectors
like tourism, finance, aviation, technology, and renewable energy to diversify their
economies, reduce their dependence on oil revenues, and prepare for a future where global
demand for fossil fuels may decline. These investments have made the Gulf an influential region
in both culture and finance, not just energy production. The Persian Gulf has served many
roles over the course of 5,000 years, a central hub for early Indian Ocean traders, a contested
highway for European empires, and the energy engine of our modern world. And today, it remains
exactly what it's always been, the world's most vital and vulnerable global artery.
of trade. The executive producer of Everything Everywhere Daily is Charles Daniel. The associate
producers are Austin Otkin and Cameron Kiefer. Research in writing for this episode was provided
by Joel Hermanson. My big thanks go to everyone who supports the show over on Patreon. Your
support helps make this podcast possible. And I also want to remind everyone about the community
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As always, if you leave a review on any of the major podcast apps, you too can have it run in the show.
Thank you.
