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Steve has memories of this as a medium for data visualization. Do you?!
Steve has memories of this as a medium for data visualization. Do you?!
Data visualization is certainly not new, but mediums have changed and opportunities have developed. It has advanced along with technological advancement, yet its origins extend much further back than we might think.
Image Source: Giphy.com
Ancient Roots
Ancient Roots
Whether maps, diagrams, or charts, we have examples of data visualization that go back centuries and even millennia. However, the modern recognition of data visualization as a medium that transcends language is a remarkable acknowledgment that there is enormous opportunity in transmitting information through visualization.
In this fascinating talk about the history of data visualization, we're shown the data observed and visually represented by Galileo, agricultural data charts by Thomas Jefferson, and more. The speaker reminds us that data visualization does not always have to be for research, but rather has the important job of communicating with the public. In representing data visually, these historical examples remind us that data visualization is undertaken with the audience in mind rather than relating data in an ultra-standardized manner. The historical examples in the video demonstrate visualizations that were made for clarity, planning purposes, and understanding.
The Need for Good Methods
The Need for Good Methods
History tells us that when poorly executed, or designed to present data in a biased manner, data visualization can be confusing, misleading, and even dangerous. Visualizations have been used for science, for learning, but also for manipulation. When examining a visualization, it is important to examine the manner in which data is being presented and consider its accuracy, scales, and methods for legitimacy.
John Snow
John Snow
Utilizing a dot map modified to use small bars in key locations, John Snow created this data visualization in 1854 to demonstrate the location of Cholera cases in London. With this visualization in hand, he was able to identify and prove a source of the illness, increasing our understanding of the spread of disease, and triggering massive developments in sanitation, and advancing the field of epidemiology.
The John Snow Cholera Map
The John Snow Cholera Map
Literally a Life Saver!
This visualization demonstrated key clusters of cholera cases, allowing John Snow to advocate for the shut down of the offending water tap.
History demonstrates the importance of data visualization, and reinforces the opportunity that exists in the field. Technological development makes the production of unique and understandable visuals an area of investment and future development.
If you can recall instances from your own school experiences, share your memories in the padlet!
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