🛠️ Invention or technique

Canada Geographic Information System (CGIS)

Sistema de Información Geográfica de Canadá (CGIS)

Date
1963-1968 · confidence high
Place
Ottawa, Ontario, Canada
Credited to
Roger Tomlinson
Field
Cosmos & Earth

What it is

The first computer system that stored, overlaid and analysed thematic maps in layers to manage the Canada Land Inventory. Its creator coined the term "GIS" and is regarded as the father of geographic information systems.

There were earlier computer mapping experiments (Harvard, 1960s); CGIS was the first large-scale operational GIS.

What it led to

  • commercial GIS and layered spatial analysis
  • land management with digital data and automated cartography
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Sources✓ verified 2026-11-06