Do Nineteenth-Century Graphics Still Work for Today's Readers?

TL;DR

This study evaluates the effectiveness of nineteenth-century visualizations for modern readers through experiments, revealing that some designs remain effective while others need redesigning for better comprehension today.

Contribution

It provides empirical evidence on the readability and effectiveness of historical visualizations compared to modern redesigns, highlighting design factors influencing comprehension.

Findings

Nightingale's diagram remains highly effective across versions.

Playfair's redesign underperforms compared to original and alternative versions.

Minard's map improves with redesign but still has high workload and response time.

Abstract

Do nineteenth-century graphics still work for today's readers? To investigate this question, we conducted a controlled experiment evaluating three canonical historical visualizations- Nightingale's polar area diagram, Playfair's trade balance chart, and Minard's campaign map-against modern redesigns. Fifty-four participants completed structured question-answering tasks, allowing us to measure accuracy, response time, and perceived workload (NASA-TLX). We used mixed-effects regression models to find: Nightingale's diagram remained consistently effective across versions, achieving near-ceiling accuracy and low workload; Playfair's dual-axis redesign underperformed relative to both its historical and alternative versions; and Minard's map showed large accuracy gains under redesign but continued to impose high workload and long response times. These results demonstrate that some nineteenth-century designs remain effective, others degrade under certain modernizations, and some benefit from careful redesign. The findings indicate how perceptual encoding choices, task alignment, and cognitive load determine whether historical charts survive or require adaptation for contemporary use.