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Maps have never been neutral. Every line on a map—a border, a street, a river—represents a choice about what matters and who belongs. For centuries, humanists treated space as a passive backdrop for historical events, a container to be filled with dates and names. The geospatial and spatial humanities emerged from a growing conviction that space is itself an active force in culture, politics, and meaning-making. The challenge was to develop methods that could treat space as an interpretive problem rather than a technical one, and to do so without reducing humanistic questions to the quantitative logic of geographic information systems (GIS).
The spatial humanities crystallized around the turn of the millennium as a deliberate departure from the positivist GIS that dominated geography departments. Early adopters in history, literary studies, and archaeology found GIS powerful for visualizing patterns—where battles occurred, how trade routes shifted, which neighborhoods produced which novels—but frustratingly rigid. GIS demanded precise coordinates, discrete layers, and clean boundaries, while humanists wanted to represent ambiguity, multiple perspectives, and narrative time. The result was a methodological tension that shaped the field from the start.
Deep mapping became the signature method of this first phase. Instead of a single authoritative map, deep maps layer many kinds of evidence—textual, visual, oral, statistical—onto the same geographic space, allowing contradictions and multiple interpretations to coexist. The HyperCities project, for example, let users explore Los Angeles through historical photographs, literary excerpts, and demographic data simultaneously, refusing to privilege any single layer as the "real" map. Literary geography extended this approach by mapping the fictional spaces of novels—the London of Dickens, the Dublin of Joyce—and treating those imagined geographies as historically significant in their own right.
The institutional anchor for this work came with the formation of the GeoHumanities special interest group within the Alliance of Digital Humanities Organizations and the launch of the journal GeoHumanities in 2015. These venues gave spatial humanists a home, but they also exposed internal disagreements. Some practitioners insisted that spatial humanities must remain method-driven, focused on building better tools for visualization and analysis. Others argued that method without critical reflection risked reproducing the same colonial and positivist assumptions that GIS had inherited from cartography. That fault line would soon deepen.
Around 2010, a wave of reflexive critique swept through digital humanities, and the spatial humanities felt its force directly. Critical digital humanities asked a deceptively simple question: whose maps are we making, and for whom? The answer, for many spatial projects, was uncomfortable. Historical GIS had often mapped colonial territories, trade routes, and census data without interrogating the categories those maps naturalized. A map of "Indian Territory" in the nineteenth century, for instance, might show boundaries drawn by European powers while erasing Indigenous spatial knowledge entirely.
Critical digital humanities transformed spatial practice by insisting on reflexivity at every stage. Participatory mapping projects emerged as an alternative to expert-driven GIS. In these projects, communities—especially Indigenous and postcolonial communities—defined the categories, selected the data, and controlled how their spaces were represented. The Zuni Map Project, for example, worked with Zuni elders to map sacred landscapes using Zuni place names and seasonal knowledge, refusing to translate those categories into Western coordinate systems. Data sovereignty became a central concern: who owns the spatial data, who can access it, and under what conditions?
This framework did not replace spatial humanities so much as split it. Some practitioners continued to build deep maps and literary geographies with little attention to power, while others adopted critical methods as a matter of course. The tension between method-driven and critique-driven work remains unresolved, and that is arguably productive. A deep map of a colonial city can be both technically sophisticated and critically aware, but achieving that synthesis requires deliberate effort. Critical digital humanities made that effort visible and necessary.
At roughly the same moment, another framework pushed spatial humanities beyond its Euro-American heartland. Global digital humanities asked why the tools, datasets, and research questions of spatial humanities were so concentrated in North America and Western Europe, and what happened when those tools were exported to other contexts without adaptation. The answer was often failure—or worse, epistemic violence. A GIS designed for property records in England could not capture the fluid land tenure systems of West Africa; a deep map built for a European city could not represent the seasonal mobility of pastoralist communities.
Global digital humanities broadened the geographic scope of spatial inquiry while also challenging the assumption that methods travel unchanged. Comparative diasporic cartography became a signature approach: mapping the forced and voluntary movements of people across the Atlantic, the Indian Ocean, and the Pacific, but doing so from multiple archival perspectives rather than a single imperial archive. The Slave Voyages database, for instance, maps the Middle Passage using records from European slavers, but global digital humanists have pushed to supplement those records with African oral traditions and Caribbean plantation ledgers, creating a more polyvocal spatial history.
Infrastructure disparities became a practical concern. Global digital humanities practitioners documented how unequal access to satellite imagery, high-speed internet, and proprietary GIS software shaped who could participate in spatial research. Some responded by developing lightweight, open-source tools that could run on older hardware or offline. Others argued that the real problem was not technical but epistemological: the very concept of "spatial data" assumed a Western ontology of bounded, measurable space that did not apply everywhere. This critique overlapped with critical digital humanities but added a distinct emphasis on transnational comparison and infrastructural justice.
Today, all three frameworks remain active, and their relationships are best described as pluralistic coexistence with unresolved tensions. Spatial humanities continues to produce deep maps, literary geographies, and historical GIS, especially in fields like environmental history and classical archaeology where spatial patterns are central to the research question. Critical digital humanities has reshaped how those projects are designed and evaluated: few spatial humanists today would publish a map without reflecting on its categories, its silences, and its audience. Global digital humanities has expanded the geographic and cultural range of spatial work, forcing practitioners to ask whether their methods are appropriate for the contexts they study.
The leading frameworks today are spatial humanities and critical digital humanities, but for different reasons. Spatial humanities remains the methodological engine: it produces the tools, the visualizations, and the empirical findings that make spatial work legible to other humanists. Critical digital humanities provides the ethical and political framework that keeps those methods honest. Global digital humanities is less institutionalized but increasingly influential, especially among scholars working on colonialism, diaspora, and environmental change.
What the frameworks agree on is that space is not neutral. Every map, every GIS layer, every deep map is an argument about what matters, who belongs, and how knowledge is organized. Where they disagree is on the priority of method versus critique. Can a technically sophisticated map be politically naive? Yes. Can a critically aware project produce weak scholarship? Also yes. The most generative work in the field today tries to hold both commitments together, building maps that are rigorous, reflexive, and accountable to the communities they represent. That is the central challenge of the geospatial and spatial humanities, and it shows no sign of resolution.