International Call Distribution by Region in 1983 - Princeton Data Visualization #2127865 (License: Personal Use)

This 3D clustered bar chart from Princeton University’s 1983 dataset displays the percentage of international calls made from one region to another, categorized by nine geographic zones including North America/Caribbean, Western Europe/Mediterranean, and Sub-Saharan Africa. Each bar represents a sender-receiver pair, with colors denoting origin regions and axes labeled “From Region” (x) and “To Region” (y), while height indicates call share (z-axis up to 0.8). The chart reveals strong intra-regional calling trends, especially among Western European and North American networks.

Used in academic publications or digital archives on telecommunications history; serves users researching Cold War-era global connectivity, historical ICT infrastructure, or regional communication patterns. Ideal for educational pages, data history exhibits, or university library digital collections.