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+[
+  {
+    "periodName": "Earliest Homo (c. 2.8 - 1.8 MYA)",
+    "timeRange": "c. 2.8 - 1.8 Million Years Ago",
+    "narrative": "The story of the Homo genus begins in Africa. This period sees the emergence of early members like Homo habilis, often associated with the first stone tools (Oldowan tradition). These hominins lived in environments of woodlands and grasslands, primarily in Eastern and Southern Africa. Some researchers include Homo rudolfensis in this early phase, with debates on its distinction from H. habilis.",
+    "species": [
+      {
+        "name": "Homo habilis",
+        "fullName": "_Homo habilis_",
+        "timeline": "c. 2.4 to 1.4 MYA",
+        "color": "#FFB300",
+        "notes": "Key sites: Olduvai Gorge (Tanzania), Koobi Fora (Kenya), Hadar (Ethiopia), Sterkfontein (South Africa). Associated with Oldowan tools. Brain size larger than Australopithecus.",
+        "estimatedRangeGeoJson": {"type":"Polygon","coordinates":[[[22,-35],[42,-35],[42,10],[22,10],[22,-35]]]},
+        "migrationPaths": []
+      }
+    ]
+  },
+  {
+    "periodName": "Homo erectus & First Major Dispersals (c. 1.9 MYA - 700 KYA)",
+    "timeRange": "c. 1.9 Million - 700,000 Years Ago",
+    "narrative": "Homo erectus appears, a remarkably successful species with a larger brain and body. They developed more sophisticated Acheulean tools and were the first known hominin to migrate out of Africa ('Out of Africa I'). Key fossil sites like Dmanisi (Georgia) mark this early expansion into Eurasia, eventually reaching East Asia (China, Java).",
+    "species": [
+      {
+        "name": "Homo erectus",
+        "fullName": "_Homo erectus_",
+        "timeline": "c. 2 MYA to <250 KYA (possibly ~110 KYA)",
+        "color": "#4CAF50",
+        "notes": "Key sites: Koobi Fora (Kenya, 'Turkana Boy'), Olduvai Gorge (Tanzania), Dmanisi (Georgia), Zhoukoudian (China, 'Peking Man'), Sangiran (Java, 'Java Man'). Adapted to diverse environments from African savannas to temperate Asia.",
+        "estimatedRangeGeoJson": {"type":"Polygon","coordinates":[[[-10,0],[125,0],[125,45],[-10,45],[-10,0]]]},
+        "migrationPaths": [
+          {"type":"LineString","coordinates":[[38,5],[45,15],[50,25],[70,30],[100,35],[115,30]]}
+        ],
+        "migrationColor": "#2E7D32"
+      }
+    ]
+  },
+  {
+    "periodName": "Rise of H. heidelbergensis (c. 700 - 300 KYA)",
+    "timeRange": "c. 700,000 - 300,000 Years Ago",
+    "narrative": "Homo heidelbergensis emerges, found in Africa and Europe. This species is considered ancestral to both Neanderthals (in Europe) and Homo sapiens (in Africa). They were capable hunters of large game, utilized more refined tools, and adapted to a range of environments, including colder regions in Europe. The Sahara Desert became a more significant barrier during parts of this period, influencing regional evolution.",
+    "species": [
+      {
+        "name": "Homo heidelbergensis",
+        "fullName": "_Homo heidelbergensis_",
+        "timeline": "c. 700,000 to 200,000 YA",
+        "color": "#1E88E5",
+        "notes": "Key sites: Mauer (Germany, type site), Boxgrove (UK), Sima de los Huesos (Spain), Bodo (Ethiopia), Kabwe (Zambia). Hunted large game; Schöningen spears are direct evidence.",
+        "estimatedRangeGeoJson": {"type":"Polygon","coordinates":[[[-15,25],[55,25],[55,60],[-15,60],[-15,25]]]},
+        "migrationPaths": []
+      },
+      {
+        "name": "Late Homo erectus (Asia)",
+        "fullName": "_Homo erectus_ (late populations in Asia)",
+        "timeline": "Persisted in parts of Asia",
+        "color": "#66BB6A",
+        "notes": "Later populations of H. erectus continued in East and Southeast Asia (e.g., Ngandong, Java).",
+        "estimatedRangeGeoJson": {"type":"Polygon","coordinates":[[[90,0],[125,0],[125,40],[90,40],[90,0]]]},
+        "migrationPaths": []
+      }
+    ]
+  },
+  {
+    "periodName": "Neanderthals, Denisovans & Early Sapiens (c. 400 - 100 KYA)",
+    "timeRange": "c. 400,000 - 100,000 Years Ago",
+    "narrative": "Neanderthals evolved in Europe from H. heidelbergensis, adapting to Eurasian climates. Denisovans, a sister group to Neanderthals, emerged in Asia. In Africa, early Homo sapiens were appearing, with the oldest fossils dating to around 300,000 years ago (e.g., Jebel Irhoud, Morocco). Species like H. naledi (South Africa) and H. floresiensis (Indonesia) represent other contemporary hominin diversity.",
+    "species": [
+      {
+        "name": "Homo neanderthalensis",
+        "fullName": "_Homo neanderthalensis_",
+        "timeline": "c. 400,000 to 39,000 YA",
+        "color": "#8E24AA",
+        "notes": "Key sites: Neander Valley (Germany), La Chapelle-aux-Saints (France), Shanidar Cave (Iraq), Kebara Cave (Israel). Adapted to cold climates, Mousterian tools, complex behaviors.",
+        "estimatedRangeGeoJson": {"type":"Polygon","coordinates":[[[-15,30],[70,30],[70,60],[-15,60],[-15,30]]]},
+        "migrationPaths": []
+      },
+      {
+        "name": "Denisovans",
+        "fullName": "Denisovans",
+        "timeline": "c. 287,000 to 30,000 YA",
+        "color": "#D81B60",
+        "notes": "Known from Denisova Cave (Siberia), Baishiya Karst Cave (Tibet), Cobra Cave (Laos). Genetic evidence suggests wide Asian distribution and interbreeding with H. sapiens.",
+        "estimatedRangeGeoJson": {"type":"Polygon","coordinates":[[[60,25],[130,25],[130,60],[60,60],[60,25]]]},
+        "migrationPaths": []
+      },
+      {
+        "name": "Early Homo sapiens (Africa)",
+        "fullName": "Early _Homo sapiens_",
+        "timeline": "Emerged c. 315,000 YA in Africa",
+        "color": "#FF7043",
+        "notes": "Key sites: Jebel Irhoud (Morocco), Omo Kibish (Ethiopia), Herto (Ethiopia). Anatomically modern humans originating in Africa.",
+        "estimatedRangeGeoJson": {"type":"Polygon","coordinates":[[[-20,-35],[55,-35],[55,35],[-20,35],[-20,-35]]]},
+        "migrationPaths": []
+      },
+      {
+        "name": "Homo naledi",
+        "fullName": "_Homo naledi_",
+        "timeline": "c. 335,000 to 236,000 YA",
+        "color": "#78909C",
+        "notes": "Found in Rising Star Cave system (South Africa). Mix of primitive and modern features.",
+        "estimatedRangeGeoJson": {"type":"Polygon","coordinates":[[[27,-26.5],[28.5,-26.5],[28.5,-25.5],[27,-25.5],[27,-26.5]]]},
+        "migrationPaths": []
+      }
+    ]
+  }
+]
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