The Roman Empire’s Roads In Transit Map Form
View the high resolution version of the map by clicking here.
Unless you’re a historian or map buff, interpreting a map of the Roman Empire can be a daunting exercise. Place names are unfamiliar and roads meander across the landscape making it difficult to see the connections between specific cities and towns.
Today’s visualization, by Sasha Trubetskoy, has mashed-up two enduring obsessions – transit maps and Ancient Rome – to help us understand the connection between Rome and its sprawling empire.
At the height of the Roman Empire, there were approximately 250,000 miles (400,000 km) of roads, stretching from Northern England to Egypt and beyond. This impressive network is what allowed Rome to exercise control and communicate effectively over such a large territory.
For a detailed look at travel times and costs, check out Stanford’s amazing ORBIS platform. The screenshot below shows the fastest, cheapest, and shortest routes between the settlement of Lutetia (the predecessor of present-day Paris) and Roma.
There were three main types of roads in Ancient Rome:
Viae publicae: Public highways or main roads, typically maintained by the military. These were the main, paved arteries of the empire and often included infrastructure such as drainage, milestones, and way stations.
Viae privatae: Private or country roads were financed by wealthy individuals to connect towns and other noteworthy points to the viae publicae.
Viae vicinales: These tertiary (often dirt) roads connected villages and areas within districts, eventually linking to the larger network.
This network of roads was vital as it allowed for quick troop movement as well as the development of a mail system. As the first major road network in Europe, the Romans quite literally laid the foundation for development across the continent.
There’s something alluring about Rome’s ability to carve out such a huge and advanced empire, with a legacy that lasts today.
– Sasha Trubetskoy
The Enduring Influence of Roman Roads
London, Paris, Barcelona, and countless other major cities sprang from Roman settlements along the road network, and even as Europe descended into the Dark Ages (476-800 CE), Roman roads remained as one of few functioning modes of movement and communication. A recent study even points out that proximity to that foundational network of roads even has a strong correlation with economic activity today.
Beyond mere curiosity or entertainment, looking back at Roman ingenuity allows us to see the impact their road network had on today’s world. That enduring influence is one of the reasons ancient Rome still fascinates us to this day.
For more reading, check out Trubetskoy’s followup, Roman Roads of Britain.
Wired World: 35 Years of Submarine Cables in One Map
Watch the explosive growth of the global submarine cable network, and learn who’s funding the next generation of cables.
You could be reading this article from nearly anywhere in the world and there’s a good chance it loaded in mere seconds.
Long gone are the days when images would load pixel row by pixel row. Now, even high-quality video is instantly accessible from almost everywhere. How did the internet get so fast? Because it’s moving at the speed of light.
The Information Superhighway
The miracle of modern fiber optics can be traced to a single man, Narinder Singh Kapany. The young physicist was skeptical when his professors asserted that light ‘always travels in a straight line’. His explorations into the behavior of light eventually led to the creation of fiber optics—essentially, beaming light through a thin glass tube.
The next step to using fiber optics as a means of communication was lowering the cable’s attenuation rate. Throughout the 1960-70s, companies made gains in manufacturing, reducing the number of impurities and allowing light to cross great distances without a dramatic decrease in signal intensity.
By the mid-1980s, long distance fiber optic cables had finally reached the feasibility stage.
Crossing the Pond
The first intercontinental fiber optic cable was strung across the floor of the Atlantic Ocean in 1988. The cable—known as TAT-8*—was spearheaded by three companies; AT&T, France Télécom, and British Telecom. The cable was able to carry the equivalent of 40,000 telephone channels, a ten-fold increase over its galvanic predecessor, TAT-7.
Once the kinks of the new cable were worked out, the floodgates were open. During the course of the 1990s, many more cables hit the ocean floor. By the dawn of the new millennium, every populated continent on Earth was connected by fiber optic cables. The physical network of the internet was beginning to take shape.
As today’s video from ESRI shows, the early 2000s saw a boom in undersea cable development, reflecting the uptick in internet usage around globe. In 2001 alone, eight new cables connected North America and Europe.
From 2016-2020, over 100 new cables were laid with an estimated value of $14 billion. Now, even the most remote Polynesian islands have access to high-speed internet thanks to undersea cables.
*TAT-8 does not appear in the video above as it was retired in 2002.
The Shifting Nature of Cable Construction
Even though nearly every corner of the globe is now physically connected, the rate of cable construction is not slowing down.
This is due to the increasing capacity of new cables and our appetite for high-quality video content. New cables are so efficient that the majority of potential capacity along major cable routes will come from cables that are less than five years old.
Traditionally, a consortium of telecom companies or governments would fund cable construction, but tech companies are increasingly funding their own submarine cable networks.
Amazon, Microsoft and Google own close to 65% market share in cloud data storage, so it’s understandable that they’d want to control the physical means of transporting that data as well.
These three companies now own 63,605 miles of submarine cable. While laying cable is a costly endeavor, it’s necessary to meet surging demand—content providers’ share of data transmission skyrocketed from around 8% to nearly 40% over the past decade.
A Bright Future for Dark Fiber
At the same time, more aging cables will be taken offline. Even though signals are no longer traveling through this network of “dark fiber”, it’s still being put to productive use. It turns out that undersea telecom cables make a very effective seismic network, helping researchers study offshore earthquakes and the geologic structures on the ocean floor.
Mapped: The World’s Biggest Oil Discoveries Since 1868
Since 1868, there had been 1,232 oil discoveries over 500 million barrels of oil. This map plots these discoveries to reveal global energy hot spots.
Mapped: The World’s Biggest Oil Discoveries Since 1868
Oil and gas discoveries excite markets and nations with the prospect of profits, tax revenues, and jobs. However, geological processes did not distribute them equally throughout the Earth’s crust and their mere presence does not guarantee a windfall for whatever nation under which they lie.
Entire economies and nations have been built on the discovery and exploitation of oil and gas, while some nations have misused this wealth─or projected growth just never materialized.
The 20 Biggest Oil Discoveries
This map includes 1,232 discoveries of recoverable reserves over 500 million barrels of oil equivalent (BOE) From 1868 to 2010.
The discoveries cluster in certain parts of the world, covering 46 countries, and are of significant magnitude for each country’s economy. The average discovery is worth 1.4% of a country’s GDP today, based on the cash value from their production or net present value (NPV).
Of the total 1,232 discoveries, these are the 20 largest oil and gas fields:
|Field||Onshore/Offshore||Location||Discovery||Production start||Recoverable oil, past and future (billion barrels)|
|Ghawar Field||Onshore||Saudi Arabia||1948||1951||88-104|
|Mesopotamian Foredeep Basin||Onshore||Kuwait||n/a||n/a||66-72|
|Bolivar Coastal Field||Onshore||Venezuela||1917||1922||30-32|
|Safaniya Field||Offshore||Kuwait/Saudi Arabia||1951||1957||30|
|Upper Zakum Field||Offshore||Abu Dhabi, UAE||1963||1967||21|
|Romashkino Field||Onshore||Russia Volga-Ural||1948||1949||16-17|
|Shaybah Field||Onshore||Saudi Arabia||1998||1998||15|
|West Qurna Field||Onshore||Iraq||1973||2012||15-21|
Russia, West Siberia
The location of these deposits reveals a certain pattern to geopolitical flashpoints and their importance to the global economy.
While these discoveries have brought immense advantages in the form of cheap fuel and massive revenues, they have also altered and challenged how nations govern their natural wealth.
The Future of Resource Wealth: A Curse or a Blessing?
A ‘presource curse’ could follow in the wake of the discovery, whereby predictions of projected growth and feelings of euphoria turn into disappointment.
An oil discovery can impose detrimental consequences on an economy long before a single barrel leaves the ground. Ideally, a discovery should increase the economic output of a country that claims the oil. However, after major discoveries, the projected growth sometimes does not always materialize as predicted.
Getting from discovery to sustained prosperity depends on a number of steps. Countries must secure investment to develop a project to production, and government policy must respond by preparing the economy for an inflow of investment and foreign currency. However, this is a challenging prospect, as the appetite for these massive projects appears to be waning.
In a world working towards reducing its dependence on fossil fuels, what will happen to countries that depend on oil wealth when demand begins to dwindle?
Countries can no longer assume their oil and gas resources will translate into reliable wealth — instead, it is how you manage what you have now that counts.
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