1461 Days, 1334 Mass Shootings, and Zero Action from Congress.

An annotated calendar heatmap of mass shootings in the United States

View the project


Final Visualization:



Data Source:

Gun Violence Archive


Data Processing:

Using Python, Pandas library

Data Analysis Notebook


Using D3.js and HTML to draw the calendar view


Using Illustrator to annotate the file, and saved it in svg format