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Source library
Every archive and source behind our videos and articles: what it is, its licence, a link, and what we used it for. Our rule: we reuse only items marked public domain (PD), CC0 or CC BY, and we record the licence before an item goes into an edit. Music from the YouTube Audio Library is licensed for YouTube only; it is listed for completeness and is never reused here.
Looking for the per-video credit lists? They are still on Sources. Jump to: Leyte · Battle of Leyte Gulf · Franklin: Four Signatures · Anniversary Shorts · Archives we use · Licence log
Leyte, Oct 20, 1944 (Short + classroom cut)
| Type | Item | Licence | Link | Used for |
|---|---|---|---|---|
| Film | US Navy 428-NPC-5802, "Bombardment & Invasion of Leyte Islands," Oct 20, 1944 (NAID 77670) | PD | Open | Landing-day footage, Short and classroom cut |
| Film | US Navy 428-NPC-5804, "Invasion of Philippines: Beachhead Scenes on Leyte," Oct 20, 1944 (NAID 77672) | PD | Open | Landing-day footage, MacArthur ashore |
| Film | United News newsreel 208-UN-126, "MacArthur Returns to the Philippines" (NAID 39033); archive.org copy marked CC0 | PD CC0 | Open | Animated Philippines/Leyte map |
| Audio | Gen. Douglas MacArthur, 1944 recording, MSU Vincent Voice Library, Voice 4334 ("No Copyright") | PD | Open | MacArthur's real voice: "I have returned" |
| Text | M. Hamlin Cannon, Leyte: The Return to the Philippines (US Army CMH Pub 5-9, 1954), Ch. I-VI | PD | Open | Times, units, beaches, casualties; Tarbuck, Newman and Sprague quotes; Cannon quote |
| Text | FDR, "Congratulations to General MacArthur," Oct 20, 1944 (American Presidency Project) | PD | Open | Roosevelt quote |
| Text | US Army CMH, "Follow Me" painting caption (Col. Aubrey Newman) | PD | Open | Second source for the Newman quote |
| Text | AMEDD Center of History & Heritage / CMH Pub 72-14, The Army Nurse Corps in WWII | PD | Open | Nurses landed nine days later; Tacloban cathedral |
| Text | NHHC, "The Battle of Leyte Gulf" | PD | Open | Leyte Gulf summary |
| Text | FDR Library blog, "I Have Returned: General MacArthur and FDR" (2015) | PD | Open | Osmeña with MacArthur; context |
| Text | MacArthur Memorial podcast (Sept 29, 1944 Brisbane recording) | Cited only; not reused | Open | Dating the MacArthur recording (fact, not media) |
| Photo | "Douglas MacArthur lands Leyte," Oct 20, 1944, US Army Signal Corps (Gaetano Faillace) | PD | Open | Site hero image (sepia tint) |
| Music | "Risen" by Density & Time, YouTube Audio Library | No (YouTube licence) | Open | Short soundtrack only; never reused on this site |
Battle of Leyte Gulf, Oct 23-26, 1944 (Taffy 3 Short)
| Type | Item | Licence | Link | Used for |
|---|---|---|---|---|
| Photos | US Navy 80-G series via NHHC: 80-G-288886, -270517, -288493, -288497, -288494, -288144, -288888, -288892, -288885, -287505, -288889, -287538, -288881, -270516, -270511, -281767, -281769, -288099, -270514, -288891 | PD | Open | Battle photos (Samar, Surigao, Cape Engaño, St. Lo) |
| Photos | NHHC NH 63432 (Musashi under attack) and NH 63439 (USS Princeton burning) | PD | Open | Sibuyan Sea, Princeton |
| Film | US Navy 428-NPC-5868, "Task Force No. 38.3 attacked by Japanese; USS Princeton burning" (NAID 77695) | PD | Open | Halsey's carriers, Oct 1944 |
| Film | "Brought to Action" (1944), NARA 111-M-1185 reel 1 (NAID 35899) | PD | Open | Two shots labelled "Illustrative" |
| Map data | Natural Earth 1:10m land | PD | Open | Base for our own maps |
| Text | NHHC H-Gram 038-1 and 038-2 (Leyte Gulf synopsis and detail) | PD | Open | Forces, Nimitz message, Taffy 3 losses, kamikazes |
| Text | Cannon, Leyte, Ch. VI (Sprague report quote) | PD | Open | "the definite partiality of Almighty God" |
| Music | "Scale The Mountain" by Density & Time, YouTube Audio Library | No (YouTube licence) | Open | Short soundtrack only |
Franklin: Four Signatures
| Type | Item | Licence | Link | Used for |
|---|---|---|---|---|
| Paintings | Duplessis and David Martin portraits of Franklin (Google Art Project scans, Wikimedia Commons) | PD | Open | Portraits |
| Documents | Engrossed Declaration of Independence; Constitution pp. 1 and 4 (National Archives) | PD | Open | Signatures |
| Documents | Treaty of Alliance (1778) signatures (LOC); Treaty of Paris 1783 last page | PD | Open | Signatures |
| Paintings | Trumbull (1819), West (1783, unfinished), Christy (1940, AOC; PD-USGov per Commons, flagged) | PD | Open | Illustration; Christy is a "swap if in doubt" item |
| Text | Madison, Notes of Debates, Sept 17, 1787 (Avalon Project / Founders Online) | PD | Open | "Rising and not a setting Sun" |
| Text | LOC Franklin Papers timeline; Office of the Historian; AOC; US Mint | Cited facts only | Open | Dates and the "all four" claim |
| Music | "Cutscene Crush" by Blue Deer Studio, YouTube Audio Library | No (YouTube licence) | Open | Soundtrack only |
Anniversary Shorts, Fall 2026
| Type | Item | Licence | Link | Used for |
|---|---|---|---|---|
| Film | Operation Torch: 208-UN-26 (NAID 38931), 208-UN-31 (NAID 38938), 111-ADC-10129 (NAID 23891) | PD | Open | Torch footage |
| Audio | FDR radio address to the French, Nov 7, 1942 (FDR Library RLxA-96) | PD | Open | FDR's own voice |
| Film | "The Armistice, November 11, 1918," Signal Corps 111-H-1233 (NAID 24738) | PD | Open | Armistice footage |
| Film | "WASPS," Army-Navy Screen Magazine No. 16, 111-ANSM-16 (NAID 36182) | PD | Open | WASP footage |
| Film | "With the Marines at Tarawa," 127-MH-3527 (NAID 37448); 428-NPC-1176 (NAID 75866) | PD | Open | Tarawa footage |
| Film | Chosin: 111-ADC-10271 and 111-ADC-8579 (NAID 22344) | PD | Open | Chosin footage |
| Film | Pearl Harbor: 428-NPC-21950 (NAID 81712), 428-NPC-1733 (NAID 76171) | PD | Open | Pearl Harbor footage |
| Audio | FDR address to Congress, Dec 8, 1941 (NAID 1436350) | PD | Open | "A date which will live in infamy" |
| Text | CMH Pubs 72-11 and 77-8; Alexander, Across the Reef (USMC 1993); Montross & Canzona vol. III (USMC 1957); P.L. 111-40, P.L. 95-202; NPS; VA; NARA "last American death in WWI" | PD | Open | Facts for all six Shorts |
| Text | Texas Woman's University WASP Archive; State of Hawaii attack summary | Cited facts only | Open | Second sources |
| Map data | Natural Earth; OpenStreetMap contributors (ODbL; credited on screen) | PD / ODbL (map data, credited) | Open | Our own maps |
| Music | Ezra Lipp, Chris Haugen, Blue Deer Studio, Density & Time (YouTube Audio Library) | No (YouTube licence) | Open | Soundtracks only |
Archives we use
| Archive | Terms (check per item) | Link | What we take |
|---|---|---|---|
| National Archives (NARA) | Most federal records PD; check each item (motion-picture records carry a "Restricted - Possibly" boilerplate) | Visit | Film, audio, documents |
| Naval History and Heritage Command (NHHC) | US Navy official photos and histories, PD | Visit | Photos, H-Grams |
| US Army Center of Military History (CMH) | Official histories, PD | Visit | Green Books, pamphlets |
| Library of Congress (LOC) | Varies; many items "No known restrictions" | Visit | Documents, Chronicling America |
| MSU Vincent Voice Library | Per item; Voice 4334 marked "No Copyright" | Visit | MacArthur audio |
| Internet Archive | Copies of NARA film; rights follow the original | Visit | Film copies |
| Wikimedia Commons | Per file; we take only PD files and check the tag | Visit | Photos, paintings |
| Natural Earth | Public domain | Visit | Map bases |
Licence log
Dates are when the licence was recorded for the site (Pacific time). Dates before Oct 21 are reconstructed from the render notes.
| Logged | Item | Repository / ID | Licence | Used in |
|---|---|---|---|---|
| 2026-10-16 | 428-NPC-5802 / -5804 | NARA 77670 / 77672 | PD (US Govt work, 17 U.S.C. 105) | Leyte Short |
| 2026-10-16 | 208-UN-126 newsreel map | NAID 39033 | PD; archive.org copy CC0 | Leyte Short |
| 2026-10-16 | MacArthur 1944 recording | MSU VVL 4334 | No Copyright (MSU statement) | Leyte Short, classroom cut |
| 2026-10-16 | Cannon, Leyte (CMH Pub 5-9) | CMH | PD (US Army) | Leyte, Leyte Gulf, this article |
| 2026-10-18 | 80-G battle photos (20) + NH 63432, NH 63439 | NHHC | PD (US Navy) | Leyte Gulf Short |
| 2026-10-18 | 428-NPC-5868; 111-M-1185 r1 | NARA 77695 / 35899 | PD | Leyte Gulf Short |
| 2026-10-18 | Natural Earth 1:10m land | naturalearthdata.com | PD | All maps |
| 2026-10-19 | Franklin paintings and documents (10 Commons files) | Wikimedia Commons | PD (Christy flagged for review) | Franklin Short |
| 2026-10-19 | Anniversary film reels (9) and FDR audio (2) | NARA / FDR Library | PD | Six anniversary Shorts |
| 2026-10-19 | OpenStreetMap data | openstreetmap.org | ODbL (data; credited) | Tarawa, Chosin maps |
| 2026-10-21 | Faillace, "MacArthur lands Leyte" | Wikimedia Commons | PD (Signal Corps) | Site hero |
| 2026-10-21 | Anton typeface | assets/fonts/OFL.txt | SIL OFL (font licence) | Site |
| 2026-10-21 | YouTube Audio Library tracks (5) | YouTube Studio | YouTube-only licence: NOT reusable here | Video soundtracks only |