Cartography Module

Geo-Cultural Atlas

Navigate the spatial diffusion of Brahmic scripts with multi-spectral map layers. Examine pilgrimage corridors, maritime trade winds, and inscription clusters that chart the script diaspora from South Asia to Southeast Asia and the Himalayas.

64 interactive layers Coastal + overland paths GeoJSON downloads

Atlas Highlights

  • Map timeline slider with dynastic overlays.
  • Inscription density heatmaps and glyph sample popovers.
  • Exportable annotated routes for academic publications.
View diffusion summary

Spatial Methodology

The atlas synthesizes archaeological surveys, maritime chronicles, and monastic itineraries. Each layer can be filtered by century, script family, and religious affiliation to reveal intertwined routes of cultural exchange.

High-resolution basemaps integrate bathymetric data to highlight how tides and seasonal currents guided Pallava inscriptions into island Southeast Asia. Inland, caravanserai inventories chart the spread of Nagari scripts along Himalayan passes.

Key Sources

  • Periplus of the Erythraean Sea (translated commentaries)
  • Chinese Buddhist pilgrim itineraries (Xuanzang, Faxian)
  • Tamil Sangam literature sea-route references
  • UNESCO Silk Roads transnational dossier

Map Layers

Layer

Monsoon Currents

Visualize the seasonal currents that ferried scripts between the Coromandel Coast and the Malay Archipelago. Includes directional vectors and annotated port cities.

Data: Indian National Centre for Ocean Information Services (INCOIS)

Layer

Pilgrimage Networks

Map of Buddhist monastic circuits linking Bodh Gaya, Nalanda, Pagan, and Lhasa, annotated with script transformations triggered by monastic transmissions.

Data: Buddhist Heritage Trail GIS Repository

Layer

Dynastic Realms

Choropleth overlay showing the extent of key dynasties and the scripts they institutionalized, from Maurya inscriptions to Khmer royal decrees.

Data: Digital South Asian Cartographic Archive

Layer

Inscription Density

Heatmap of inscription discoveries with filters for script type, medium (stone, metal, palm-leaf), and linguistic register.

Data: Epigraphia Indica & EFEO Archive

Trade Route Narratives

Each corridor insight pairs geo-temporal context with annotated script samples discovered along the way. ArcGIS story maps provide step-by-step explorations, ideal for classroom storytelling or public outreach.

  • Coromandel to Srivijaya

    Chronicles the spread of Pallava grantha through emporia like Kaveripattinam and Palembang, highlighting bilingual Tamil-Malay inscriptions.

  • Ganges to Pagan

    Follows itinerant monks transporting Pali canon manuscripts and the emergence of Burmese round script forms tailored to palm-leaf manuscripts.

  • Himalayan Spine

    Tracks caravan routes through Kashmir and Mustang culminating in Tibetan script standardization under the Yarlung dynasty.

Route Visualizer

Adjust the timeline slider to animate route intensity and overlay climate data. Markers reveal port cities, monasteries, and caravan halts with embedded glyph galleries.

Current focus: 800 CE – rise of Sailendra and Pagan polities.

Datasets & Integration

GeoJSON Bundles

Static and time-enabled GeoJSON files for ingestion into GIS tools.

Mapbox Tileset

High-resolution tileset with bathymetric and topographic detail for web embedding.

Story Map Templates

ArcGIS and Flourish templates with narrative scaffolding for public exhibits.