Slide Images — Evidence, Purpose, and Form

Eleven images used by ../index.html. All are public domain, CC0, CC BY 4.0, or CC BY-SA 3.0. The CC BY 4.0 and CC BY-SA 3.0 items require attribution, which is carried in the <figcaption> on their slides — don’t strip it.

If you change a filename, update the matching <img src="…"> in ../index.html.

Credits

File	What it is	Source	License
`herodotus-bust-met.jpg`	Roman portrait bust of Herodotus, 2nd c. CE	Metropolitan Museum of Art, 91.8	CC0
`thucydides-bust-rom.jpg`	Portrait bust of Thucydides, Roman copy of a Greek original	Royal Ontario Museum	Public domain
`greco-persian-wars-map.jpg`	The Greek world during the Persian Wars, 500–479 BCE	Bibi Saint-Pol, Map Greco-Persian Wars-en.svg	CC BY-SA 3.0
`athenian-empire-431-map.jpg`	The Athenian Empire on the eve of the Peloponnesian War, 431 BCE	Marsyas, derivative by Once in a Blue Moon, Map athenian empire 431 BC-en.svg	CC BY-SA 3.0
`croesus-pyre-myson-louvre-g197.jpg`	Croesus on the pyre, Attic red-figure amphora by Myson, c. 500–490 BCE, from Vulci	Louvre G 197 (photo: Bibi Saint-Pol)	Public domain
`livy-poggio-manuscript-vat-lat-3331.jpg`	Livy, Ab urbe condita, end of Bk 38 / start of Bk 39, copied by Poggio Bracciolini, 1453	Biblioteca Apostolica Vaticana, Vat. lat. 3331, fol. 156v	Public domain
`lucretia-botticelli-gardner.jpg`	Sandro Botticelli, The Story of Lucretia, c. 1500–01	Isabella Stewart Gardner Museum, Boston	Public domain
`sima-qian-portrait-npm.jpg`	Sima Qian, from 歷代聖賢半身像冊 (Half-Length Portraits of Sages Through the Ages)	National Palace Museum, Taipei	CC BY 4.0
`shiji-tang-manuscript.jpg`	Shiji, “Book of Rivers and Canals” §7 (vol. 29), Tang dynasty manuscript copy	Tokyo National Museum, TB-1573	CC BY 4.0
`shiji-taishigong-highlight.jpg`	Derived from the above: gold box added around 太史公曰	derivative	CC BY 4.0
`shiji-taishigong-detail.jpg`	Derived from the above: 3× crop of the 太史公曰 column, gold box added	derivative	CC BY 4.0
`xiang-yu-portrait-pma.jpg`	Xiang Wang (Xiang Yu), from Portraits of Famous Men, 19th–early 20th c.	Philadelphia Museum of Art, 42784	Public domain

All retrieved via Wikimedia Commons; the objects and paintings 2026-08-31, the two maps 2026-09-01.

Notes

Sourced at width 1400–2200, then capped at 1800 px on the long edge and recompressed to JPEG q78. Everything is under 1 MB; the folder totals ~6.5 MB.
The CSS caps images at the slide height, so portrait and landscape both work. Each <figure> carries a portrait or landscape class — portrait puts the caption to the right of the image, landscape puts it underneath. Keep them matched to the actual aspect ratio or the layout goes strange.
Three of the four historian portraits are later inventions with no claim to likeness, and the captions say so. That is deliberate — it is the same point the week makes about the texts.
The two maps are rendered from SVG at 1800 px and saved at JPEG q88 rather than the q78 used for everything else — they carry small type, and q78 smears the place names. They are the only CC BY-SA 3.0 files here: attribute them, and if you ever edit one, the edit inherits ShareAlike. Re-render with:
```
curl -L -H 'User-Agent: your-name (your-email)' \
  'https://commons.wikimedia.org/wiki/Special:FilePath/Map_Greco-Persian_Wars-en.svg?width=1800' -o m.png
sips -Z 1800 m.png --out out.jpg -s format jpeg -s formatOptions 88
```

The two shiji-taishigong-* files are annotated derivatives of shiji-tang-manuscript.jpg, made with ImageMagick — the gold rectangle (#d9b26a, the theme accent) is ours, not the manuscript’s. Both captions say so explicitly. Regenerate with:

magick shiji-tang-manuscript.jpg -stroke '#d9b26a' -strokewidth 4 -fill none \
  -draw "rectangle 766,92 830,248" -quality 82 shiji-taishigong-highlight.jpg

magick shiji-tang-manuscript.jpg -crop 235x470+688+85 +repage -resize 300% \
  -stroke '#d9b26a' -strokewidth 5 -fill none \
  -draw "rectangle 234,21 426,489" -quality 82 shiji-taishigong-detail.jpg

Keep shiji-tang-manuscript.jpg — it is the unmodified source both derive from.