MAPS OF HISTORY · ROAD TO WW2 · BATTLES AND EVENTS · Katyn massacreRoad to WW2 · SITE OF MEMORY · 1940
Katyn massacre (1940)
On the Road to WW2 map as “Katyń”
Apr–May 1940 — In the Katyń forest and elsewhere, the NKVD executes some 22,000 captured Polish officers, police and members of the intelligentsia, by quota and by name. The USSR admits responsibility only in 1990. Remember them.
When Apr–May 1940 Type Site of memory Chapter Road to Operation Barbarossa (chapter 11 of Road to WW2)Atlas The Road to War, 1931–1941 SITE OF MEMORY · THE ROAD TO WAR, 1931–1941 These maps are reconstructed from published sources · Cliopatria v0.2.1 — dated political boundaries · Australian War Memorial — fall ofGondar and end ofItalian control,November1941 · Regional history institute — Italian annexations of1941, Fiume province and Krk · United States Holocaust Memorial Museum — German territorial expansion · IGM Fiume, 1:25,000, sheet53B II SE — boundary established in1924 · Natural Earth — physical reference geography · Yugoslavia (1929–1939) location map — international frontier and Adriatic coast · Treaty of Rome (1924), division of Fiume and west-bank boundary · Murli / rowanwindwhistler — Slovakia border changes, 1938–1945 · United States Holocaust Memorial Museum — The Holocaust in Slovakia · US Military Academy — The War in Eastern Europe (1952), maps7 and15 · Slovak Nation’s Memory Institute — The First Vienna Award
Source details Cliopatria contributors / Seshat Global History Databank. CC BY4.0 · Dated polity and constituent territory selections; campaign-dependent occupation overlays reconstructed separately. Australian War Memorial — fall ofGondar and end ofItalian control,November1941. Historical facts consulted; no source artwork or prose republished Regional history institute — Italian annexations of1941, Fiume province and Krk. Historical geographic facts consulted; source prose and artwork not republished United States Holocaust Memorial Museum. Historical dates consulted; no prose or image copied Istituto Geografico Militare, Fiume (printed1946; 1927 survey with1931–1940 updates), reproduced by Istituto regionale per la storia della Resistenza e dell’Età contemporanea nel Friuli Venezia Giulia. Independent reconstruction from graticule coordinates and boundary observations; archive page reserves artwork rights.. Geographical-fact reconstruction; original archive artwork not distributed Natural Earth. Public domain NordNordWest/Wikipedia. Converted from the published SVG to WGS84; eastern Italian regional territory extracted. Source cites Velhagen & Klasings Großer Volksatlas (1938).. CC BY-SA 3.0 Germany 1924 agreement interpreted alongside the regional history institute and City of Rijeka’s explanation of the Donja/Gornja Drenova division.. Historical geographic facts; citation only Murli; SVG adaptation by rowanwindwhistler (2021). CC BY-SA 2.5; derived geographic paths under the same license · Georeferenced actual published vector regions using eight printed city positions; no map artwork or labels in the atlas. United States Holocaust Memorial Museum — The Holocaust in Slovakia. Historical chronology consulted; no source prose or artwork republished Department of Military Art and Engineering, United States Military Academy,1952. US federal government work; public domain maps Slovak Nation’s Memory Institute — The First Vienna Award. Historical territorial chronology consulted; no source artwork or prose republished The June–December 1941 chapter uses the front of 6 December 1941, matching its final campaign phase.
The published Free French polity is assigned to the Allied side. Its separate territory does not inherit the occupied status of metropolitan France.
Slovak territory is reconstructed from the published 1938–1945 border-change map, distinguishing the client state from Hungarian and German annexations. Small northern frontier changes and survey-level detail lie outside this regional source. After August 1944, German military occupation supersedes the client-state fill.
The eastern Italian frontier uses the published 1930s regional map and a 1924 Fiume boundary reconstruction. Source conquests after April 1941 remain separately dated.
reconstruction: 1922–1952 · reconstruction: 1936–1941 · reconstruction: 1936–1942 · reconstruction: 1938-10 · reconstruction: 1939 · reconstruction: 1939-03 · reconstruction: 1940-06 · reconstruction: 1940–1941 · reconstruction: 1940–1942 · reconstruction: 1941-12-06 · reconstruction: 1941.5 · reconstruction: 1941–1941 · trace: 1941-12-06 · vector: 1895–1941 · vector: 1912–1955 · vector: 1918–1941 · vector: 1936–1941 · vector: 1936–1944 · vector: 1936–1945 · vector: 1936–1986 · vector: 1938–1972 · vector: 1939–1944 · vector: 1939–2023 · vector: 1940–1941 · vector: 1940–1942 · vector: 1940–1943 · vector: 1941–1941 · vector: 1941–1943
Layer records and reconstruction methods
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