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    "https://www.austria.org/history-2",
    "https://www.austria.info/de-at/portraits/habsburger/",
    "https://www.habsburger.net/en/chapter/war-over-italy",
    "https://www.wien.gv.at/pdf/ma23/viennainfigures-2022.pdf",
    "https://www.lombardiabeniculturali.it/istituzioni/schede/8000359/",
    "https://ww1.habsburger.net/en/chapters/dual-monarchy-two-states-single-empire"
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  "commercialStatus": "approved",
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  "attribution": "Historical polygons by André Ourednik and historical-basemaps contributors, GPL-3.0. Cropped, topology-repaired and simplified by MapifyStats. 1783 entity name corrected. Source geometry and GPL license are included.",
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    "kind": "snapshot",
    "epochs": [
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    "unit": "year"
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  "units": {
    "epoch": "source year",
    "geometry": "longitude, latitude degrees"
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  "limitations": [
    "Coverage is limited to one selected entity in Central Europe at 1783, 1815 and 1880. Outside the entity means outside reviewed coverage, not ungoverned territory.",
    "Generalized GPL source polygons are cropped to this chapter. Their precision cannot establish parcel-level jurisdiction or contested local frontiers.",
    "Borders crossfade only as a visual transition; no intermediate year, event date or morphing frontier is asserted.",
    "The 1783 source label Austrian Empire is corrected to Habsburg hereditary lands, since the empire was created in 1804.",
    "This is a source-based editorial check, not an independent historian's review. Internal crownland boundaries, local minority histories and overlapping Holy Roman institutions need further chapters."
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