The reading this week is brief, providing a quick overview of five of the most influential visualizations of all time. For this week’s discussion, select one of the visualizations ment

The 5 Most Influential Vizzes of All Time

2The 5 Most Influential Vizzes of All Time

About these visualizations Data helps find opportunities and resolve misunderstandings. These five visualizations are

evidence of that. They influenced people’s thoughts and actions at critical points in history—

making an impact on the world around us.

We can learn a lot about the future of data visualization by looking at the past. These visualizations

are still relevant today and continue to teach us about the power of data storytelling.

Contents 5. London Cholera Map – John Snow………………………………………………………………………3

4. Gapminder – Hans Rosling ……………………………………………………………………………………..4

3. March on Moscow – Charles Minard …………………………………………………………………..5

2. War Mortality – Florence Nightingale ………………………………………………………………..6

1. Chart of Biography – Joseph Priestley ……………………………………………………………… 7

About Tableau …………………………………………………………………………………………………………………..9

Additional Resources ……………………………………………………………………………………………………..9

3The 5 Most Influential Vizzes of All Time

5. London Cholera Map – John Snow

1854. London. Cholera strikes. In just 10 days, over 500 people have died in one neighborhood.

The mysterious cluster of deaths is especially terrifying because no one understands the source.

No one besides John Snow, an epidemiologist who believed that the water supply was spreading

the disease.

He plotted every death on a map with ingenious mapped bar charts (see left) and was able to show

that the closer to the Broad Street water pump he plotted, the greater the number of deaths.

This was positive proof that cholera was caused by contaminated water. Determining the source

helped end the epidemic and save millions of lives.

4The 5 Most Influential Vizzes of All Time

4. Gapminder – Hans Rosling

The Swedish scientist Hans Rosling had been working with developmental data for over 30 years—

but it took a great visualization and a 2007 TED talk for him to share his passion with the world.

His original viz (now one of many) shows the relationship between income and life expectancy

in 200 countries over 200 years, in just four minutes. The data is simple but Rosling’s visual

storytelling transformed how people approach data presentation.

5The 5 Most Influential Vizzes of All Time

3. March on Moscow – Charles Minard

In 1812, Napoleon marched to Moscow to conquer the city. 98% of his soldiers died. Fifty years

later, while his country yearned for their former Imperial glory, the Parisian engineer Charles

Minard chose to remind his country of the horrors of war with data. The simple but fascinating

temperature line below the visualization shows how cold ultimately defeated Napoleon’s army.

This viz still inspires those who see it to ponder the true cost of war.

6The 5 Most Influential Vizzes of All Time

2. War Mortality – Florence Nightingale

1855. The Crimea. Britain is fighting a battle with both Russia and disease. As a nurse, how do you

convince an army to invest in hospitals and healthcare instead of guns and ammunition?

Florence Nightingale told her story with data by showing the staggering amount of deaths due to

preventable disease (shown in blue/grey). This visualization helped convince the British army to make

sanitation a priority, saving lives in the process.

7The 5 Most Influential Vizzes of All Time

1. Chart of Biography – Joseph Priestley

The 18th century English educator and polymath Joseph Priestley had an ambitious goal: to teach

his students the relationship between the nations of the past and the people that defined them.

His creation ended up becoming two separate, but related views.

These bars on these timeline charts showed the lifespan of 2,000 famous people from 1200 BCE to 1800 AD.

Using the same X-axis as the biography chart, this visualization shows the history of the major civilizations of the world over the same time period.

8The 5 Most Influential Vizzes of All Time

Together, they weave an intricate story. They explain and document both the rise and fall of

empires, and the unique thinkers that defined those nations. Notice, as an example, the clusters

of biographies and how they correlate to the major moments in human history—the Greeks, the

Romans, the Enlightenment, etc.

The greatest value of a picture is when it forces

us to notice what we never expected to see.

JOHN TUKEY, 1977

About Tableau

Tableau helps people transform data into actionable insights that make an impact.

Easily connect to data stored anywhere, in any format. Quickly perform ad-hoc analyses

that reveal hidden opportunities. Drag and drop to create interactive dashboards with

advanced visual analytics. Then share across your organization and empower teammates

to explore their perspective on data. From global enterprises to early-stage startups

and small businesses, people everywhere use Tableau’s analytics platform to see and

understand their data.

Additional resources

Product Demo

Training & Tutorials

Community & Support

Customer stories

Solutions