War what is it good for

War, What is it Good For?

Do you remember the Edwin Starr song “War” from 1969? The chorus repeats:

War, huh yeah

What is it good for?

Absolutely nothing, oh hoh, oh
Well, war is good for at least one thing…maps!

Wartime Maps

Mapping data before computers was difficult and seems to have been a primary concern during war. In fact, wars have advanced the state of the art in mapping data for situational awareness throughout history. The speed at which we can determine events and plot them on a map shows amazing technical advancement.

The basic idea is to visualize the placement of the enemy and friendly forces on a paper map with pins, which we still do today. But instead of physical pins, we use images of pins on an electronic map.

Churchill’s War Rooms

The Map room – Churchill War Rooms

I want to take you to where Winston Churchill poured over maps during World War II. His war rooms were contained in an underground bunker beneath five feet of concrete in London. According to the Imperial War Museums, there was a concern that Londoners would feel abandoned and evacuation would be slow. So the government built a bunker right in London for use during the next war.

These rooms were left exactly the way they were found on August 16, 1945, at the end of the war. You can still see the pin holes in the maps for past troop movements and ships as they crossed the ocean.

Large Wall Map – Churchill War Rooms

There are also walls full of graphs and charts. It’s the 1948 version of today’s management dashboard. These charts outlined the number of troops and were kept up to date by an army of people moving pins and updating charts.

Informational Bar Charts – Churchill War Rooms

It is obvious how these maps and charts were used to enhance decision-making. They provided accurate knowledge and understanding of location, type and counts of equipment, and health of the troops for both the axis and the allies.

Graphs – Churchill War Rooms

There is even a map of Germany with an acetate covering to allow them to write on it. The last thing they wrote were the outlines of which countries would administer the division of Germany.

Germany Divided

Men of Maps

Churchill enjoyed studying maps so much that he had his sleeping/office quarters in the bunker papered with maps from floor to ceiling. His love for maps was well known.

In fact, his peer and collaborator in America, Franklin Roosevelt, was also a big fan of maps and had a steady stream of updated maps provided to him by the National Geographic Society. In the FDR White House, there was a cloakroom converted into a map room modeled after Churchill’s map room. The FDR Library says, “Maps posted in the room were used to track the locations of land, sea and air forces.”

Secret Room

There was another more secretive part of the Churchill War Rooms. Down a back hallway there was a restroom, or as it is called in England, the WC.

It was reserved for Winston Churchill’s use alone. Very few people really knew what was on the other side of the door.

Churchill’s “Water Closet” in the War Rooms

Typical Restroom Lock Indicator for Restrooms in England

The space was actually a secret telephone room with a direct line to FDR in the White House. The two leaders would coordinate the war operations over the encrypted line. It was encrypted with a system called SIGSALY that sat under the Selfridges department store on one end and the Pentagon on the other.

Innovations Continue Today

The use of great human effort, paper maps, and telecommunications aided in the war effort and led to innovations in managing logistics and monitoring world events geospatially. We have come along way, but we still put pins in a map – they just happen to be electronic. The militaries of the world continue to upgrade their map rooms into walls of video screens and server rooms of computers to make visualization updates in near real-time. Onward!


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Mapping an Epidemic

Mapping an Epidemic

This map changed the way we see the world and the way we study science, nature, and disease.

In August of 1854, cholera was ravaging the Soho neighborhood of London where John Snow) was a doctor. People were fleeing the area as they thought cholera was spread by gasses in the air or, as they called it, “bad air.”

Just as there is disinformation today about Ebola being airborne, the experts of that time thought most disease was spread in the air. There was no concept that disease might be in the water. They had no idea that bacteria even existed.

John had worked as a doctor in a major outbreak of cholera in a mine. But despite working in close quarters with the miners, he never contracted the disease. He wondered why the air did not affect him.

This inspired him to write a paper on why he believed cholera was spread through water and bodily fluids. The experts at the time did not accept his theory; they continued to believe cholera was caused by the odors emitted by rotting waste.

In the Soho outbreak in August 1854, John Snow saw a chance to further prove his theory. He went door to door keeping a tally of deaths at each home. This was only part of his quest to find evidence to prove the source of the plagues of the day.

He had been collecting statistical information, personal interviews, and other research for many years. He added this information to his paper, “On the Mode of Communication of Cholera.” The paper and his work in researching and collecting evidence founded the science of epidemiology.

One of the most innovative features was plotting data using a map; it was the first published use of dots on a map supporting a scientific conclusion. Each of the bars on John Snow’s map represents one death. Using this visual technique, he could illustrate that the deaths were centered around a point and further investigate and interview people in the area. He could also find anomalies and outliers such as deaths far from the concentration and areas with no deaths.

Epicenter Pump and Brewery

He found through personal interviews and mapping the data that the workers in the brewery (in the epicenter of the epidemic) were not dying. The owner of the brewery said that the workers were given free beer, and he thought that they never drank water at all. In fact, there was a deep well in the brewery used in the beer. In other cases, John Snow found that addresses with low deaths had their own personal well.

He also investigated the outlying incidents through interviews: some worked in the area of the pump or walked by it on the way to school. One woman who got sick had the water brought to her by a wagon each day because she liked the taste of that particular well water. One person he talked to even said the water smelled like sewage and did not drink it, but his servant did and came down with a case of cholera.

The incidents highlighted the area around a public pump on Broad Street. Using his data, he convinced the local authorities to have the pump handle removed.

The most innovative feature of the map is that it changed the way we use maps. The idea that data could be visualized to prove a fact was very new.

John Snow’s map of the service areas of two water companies

John Snow also produced another map showing which water companies supplied water in London. This map showed that the water company which stopped using water from the Thames had a lower death rate due to cholera. The map allowed John Snow to provide further evidence of disease spread through water and what could be done to fix the issue.

This is similar to the Ebola outbreak of today where tracking the disease is important. John Snow’s idea of collecting data in the field and mapping it lives on in maps like those from HealthMap, which show the spread of the Ebola virus.

Data Exploration via Map

Today, we use data driven maps as a powerful tool for all sorts of reasons. But it all started with John Snow.

(For an interesting take on this event and other historical technology that changed the way we live today, watch the “Clean“ episode of the How We Got to Now series on PBS.)

To learn more about Volume Labs and Volume Integration, please follow us on Twitter @volumeint and check out our website.