# Mississippian Deep Dive ![[images/Mississippian-Deep-Dive.webp]] **Creator:** Archaeologist Ed Barnhart (@Ed_Barnhart) · **Published:** 2026-10-31 · **Length:** 1:35:37 · [Watch on YouTube](https://www.youtube.com/watch?v=pS4uYLxKCSo) > Caption source: YouTube's English auto-captions (`en-orig`) via yt-dlp, after one HTTP 429 retry. Several names were mis-heard by the captions ("Joe Rogan" for John P. Rogan, "Linda Shealy" for Linda Schele, "around 11:30" for "around 1130") and are corrected here. The video has no chapters; it is a compilation of six earlier episodes, so the section headings below follow those episodes. The video was added from the user's "Summarize" playlist. ## Outline ### Cahokia, the first Mississippian city (0:00 to 17:12) - [0:07](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=7s) The opening episode: Cahokia, across the Mississippi from St. Louis, had about 15,000 people (by his count), a 2-mile palisade and Monks Mound, which he calls the third-largest pyramid in the Americas by volume after the Pyramid of the Sun at Teotihuacan and the Great Pyramid of Cholula. ![[images/Mississippian-Deep-Dive-t0020.webp]] *Ed Barnhart introducing the Mississippian deep dive* - [1:57](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=117s) Cahokia's roots: after the Hopewell world faded around 500 CE, the bow and arrow and then corn spread through the region; small villages grew from about 700 CE. - [3:58](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=238s) Plum Bayou Mounds in Arkansas (formerly called "Toltec Mounds") was an earlier mound center that declined around 1000 CE as Cahokia grew from about 1,000 people to more than 10,000 by about 1060. - [6:19](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=379s) Mound 72, the only Cahokia mound fully excavated: about 260 burials, including a couple laid on some 20,000 shell beads, pits of strangled young women (24 in one, 53 in another), four men missing heads and hands, and a pit of 39 people killed on the spot and covered by a layer of honored burials. He compares this retainer sacrifice to the Moche and Chimú of Peru. ![[images/Mississippian-Deep-Dive-t0470.webp]] *A pile of finely made arrowheads, the kind of colorful offering found with Mound 72 burials* - [7:51](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=471s) Grave goods include chunky stones (disks for a rolling-stone game), arrows and mica. - [10:20](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=620s) Around 1030 to 1050 Cahokia was remade: uniform rectangular houses aligned to the cardinal directions, the start of Monks Mound, the Grand Plaza, and chunky played as a public spectacle. - [13:10](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=790s) At its peak the city held 15,000 or "some people say 20,000" across about 3,000 acres; the state park today is under 500 acres. - [13:55](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=835s) He dates the palisade (20,000 logs, 10 to 12 ft posts) to about 1130, rebuilt three times in 20 years, with the city emptying by 1150, mostly abandoned by 1200 and home only to squatters by 1250. He says the cause is unknown; there is no evidence of an attack. - [15:10](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=910s) Cahokia's people likely moved to rising cities in Alabama and Oklahoma. Its art and symbol "package", the Southeastern Ceremonial Complex (SECC), spread across the region; the large-scale human sacrifice did not. - [16:11](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=971s) De Soto later exploited rivalries among these warring city-states. ### Ancient Mississippian religion explained (17:12 to 35:30) ![[images/Mississippian-Deep-Dive-t1070.webp]] *Title card for the religion episode, over an engraved shell gorget* - [19:14](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=1154s) Recap: millions of people lived between Florida and southern Canada from about 900 CE to European contact, and the De Soto expedition met "city after city". He gives Monks Mound as 100 ft tall covering "18 football fields", Cahokia as 20,000 people (50,000 with its satellite towns) by 1100 CE, and says dozens of later cities reached 5,000 to 10,000 people. ![[images/Mississippian-Deep-Dive-t1220.webp]] *Map of the American Bottom around Cahokia (source credited on screen: ResearchGate)* - [21:54](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=1314s) Since no Mississippian texts survive, he reconstructs the religion by comparing the beliefs of descendant tribes, a method he likens to reconstructing a parent language. He mentions the "shatter zone" of societies broken up by European disease and slaving. - [22:46](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=1366s) Theme 1, a three-tiered cosmos: an upper world of thunderbirds and falcon beings, this world, and a lower world of water and the underwater panther (the Piasa). ![[images/Mississippian-Deep-Dive-t1370.webp]] *"1. Three-tiered cosmos" illustration (source credited on screen: historum.com)* - [25:03](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=1503s) Theme 2, the Great Spirit: a solar creator for the Muscogee (Creek) and Choctaw, a more distant creator for the Ho-Chunk and Ojibwe. - [25:29](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=1529s) Theme 3, Red Horn, a Ho-Chunk culture hero ("He Who Gets Hit With Deer Lungs") with small faces on his earlobes, companions Turtle and Thunderbird, a chunky match against giants, and sons who resurrect him. He links him to the figures with face earrings in Mississippian art and to the Gottschall rock shelter painting in Wisconsin ([28:05](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=1685s)), and to an arrow-and-lungs symbol from the SECC set. - [28:46](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=1726s) Theme 4, heroic twins, found among the Iroquois, Seminole and Caddo (whose Civilized Boy and Wild Boy he likes best), with parallels in Pueblo and Navajo stories and the Maya Popol Vuh ([30:36](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=1836s)). ![[images/Mississippian-Deep-Dive-t1820.webp]] *Engraved shell gorget (source credited on screen: Wikipedia)* - [30:55](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=1855s) Theme 5, the Milky Way as the path of souls to the land of the dead. He points to his colleague William Romain's "path of souls" research ([31:28](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=1888s)) and the hand-and-eye symbol ([32:04](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=1924s)), which he compares to the hamsa. - [34:53](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=2093s) Patreon plug (patreon.com/archaeoed). ### Moundville, Alabama (35:30 to 50:40) ![[images/Mississippian-Deep-Dive-t2270.webp]] *Reconstruction painting of Moundville (source credited on screen: Encyclopedia of Alabama)* - [37:35](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=2255s) On the Black Warrior River: 29 pyramids around a plaza he puts at 320 acres, Mound B about 60 ft tall on a 2-acre base, and a palisade more than a mile long and 10 to 12 ft high. About 1,000 people lived inside the wall and more than 10,000 in the valley. - [38:23](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=2303s) Timeline: a Late Woodland village around 800 to 900, Mississippian influence around 1100, a surge around 1200, decline around 1300, abandonment by the late 1300s, and continued use as a burial ground into the mid-1400s. ![[images/Mississippian-Deep-Dive-t2420.webp]] *The "1300 CE" step in his Moundville timeline* - [40:56](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=2456s) In 1866 a local sheriff, Hezekiah Powell, claimed a 9-ft "giant" skeleton; farmers later turned up the rattlesnake disk ([41:22](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=2482s)), with two intertwined rattlesnakes around a hand with an eye in its palm. - [41:39](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=2499s) Clarence B. Moore, a wealthy antiquarian, steamed the southern rivers on his boat *Gopher of Philadelphia* from 1891 to 1918, dug about 850 sites, and spent 35 days at Moundville in 1905. - [42:57](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=2577s) The University of Alabama bought the land in 1933; the Civilian Conservation Corps ([43:09](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=2589s)) dug under Walter B. Jones and David DeJarnette, 200 men over 4 years, finding about 75 houses and 2,050 burials, until the CCC crews left for World War II. - [44:06](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=2646s) In the 1970s Christopher Peebles reanalyzed the burials and argued for a three-tier ranked society, with seven chiefly burials in Mounds C and D and paired mounds for elite families. Barnhart notes that "chief" is now often replaced by "king" or "ruler" ([45:54](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=2754s)). - [47:21](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=2841s) In 1540 the De Soto expedition met King Tuscaloosa, a giant of a man, and was ambushed at Mabila; the city of Mobile takes its name from Mabila ([48:49](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=2929s)), whose site is still unfound. De Soto then wintered in a Chickasaw town ([49:57](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=2997s)). - [50:42](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=3042s) He visited with his daughter Alice while writing his Great Courses lecture series. ### Etowah, Georgia (50:40 to 1:04:55) ![[images/Mississippian-Deep-Dive-t3170.webp]] *Reconstruction painting of Etowah village life (source credited on screen: lostworlds.org)* - [51:13](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=3073s) In northwest Georgia, occupied from about 1000 CE to the 1540s. In the 1300s it had several thousand people, six pyramids and a 54-acre core, a 12-ft palisade with towers every 80 ft, a 10-ft-deep moat ([51:53](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=3113s)) and a buffer of nut trees. - [52:29](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=3149s) Mound A is 63 ft tall on about 3 acres ("three football fields"); about 140 houses and just under 1,000 people lived inside the wall. - [53:40](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=3220s) More than 100 V-shaped stone fishing weirs survive in the Etowah River. - [54:17](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=3257s) Art: the Rogan copper plates (Braden style), Craig-style engraved shell, and stone statues; he says 10 were found, about 2 ft tall ([55:09](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=3309s)), the finest a painted marble pair from Mound C. ![[images/Mississippian-Deep-Dive-t3320.webp]] *The painted marble male and female statues from Mound C, in the site museum* - [55:48](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=3348s) A village from about 200 BCE becomes Mississippian, declines around 1200, is empty for about 50 years, and peaks from 1250 to 1375, when the palisade went up. - [56:48](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=3408s) In 1540 De Soto subdued the Coosa next door and sacked a village called Etiba, which may have been the by-then shrunken Etowah. ![[images/Mississippian-Deep-Dive-t3470.webp]] *Map of De Soto's route through Coosa, Itaba and Talisi (source credited on screen: Wikimedia)* - [57:48](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=3468s) Excavation history: Colonel Lewis Tumlin bought the land in 1832 and protected it, and, he says, Sherman spared it in 1864 because they had served together. The Smithsonian's Cyrus Thomas and John P. Rogan dug in 1883 to 1885, Warren K. Moorehead dug Mound C from 1925, and the Tumlins sold the site to the Georgia Historical Commission in 1953. - [59:49](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=3589s) He gives 1965 for its National Historic Landmark designation. After NAGPRA (1990) the Muscogee Nation was recognized as Etowah's descendants; they call it Etalwa, meaning "town", and about 100,000 Muscogee live in Oklahoma after removal on the Trail of Tears in 1836. ![[images/Mississippian-Deep-Dive-t3620.webp]] *Barnhart on NAGPRA, the 1990 repatriation law* - [1:00:49](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=3649s) Thousands of artifacts were repatriated in 2022, and the museum was redone in 2024 without burial goods. - [1:01:24](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=3684s) A new study reports cacao (chocolate) DNA on Etowah potsherds, implying trade with Central America. He wants it to be true but is cautious: the sherds were collected in the 1950s, the DNA was degraded, and modern cacao genomes were used to match it. Earlier tests had found theobromine and caffeine, which also occur in black drink brewed from yaupon holly. He quotes his mentor Linda Schele that trusting science without checking it can be its own kind of faith ([1:02:11](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=3731s)), and says "let's wait for the other shoe to drop." ### Spiro, Oklahoma (1:04:55 to 1:22:14) - [1:04:55](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=3895s) Merch plug, then Spiro: over 10,000 people at its 14th-century height, 12 pyramids, an 80-acre plaza and a chunky court, on the western edge of the Mississippian world. - [1:06:53](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=4013s) Began around 800 CE, with pyramids from about 900, influenced by Plum Bayou and Coles Creek; a dip around 1200 and a peak from 1250 to 1350, trading with Moundville and Etowah. - [1:09:31](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=4171s) Exotic goods: Olivella shells from California's Channel Islands and green obsidian from the Pachuca mines in central Mexico ([1:09:45](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=4185s)). ![[images/Mississippian-Deep-Dive-t4220.webp]] *Carved stone effigy pipe from Spiro (source credited on screen: spiromounds.com)* - [1:10:38](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=4238s) No palisade, and multi-family houses; archaeologists call the region "Caddoan Mississippian" after the modern Caddo Nation. In the winter of 1994 Barnhart dug at a Caddoan site in East Texas now called Oak Hill Village ([1:10:50](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=4250s)), with circular houses. ![[images/Mississippian-Deep-Dive-t4370.webp]] *Map placing Spiro and the Caddoan region relative to the Gulf of Mexico (source credited on screen: ResearchGate)* - [1:12:18](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=4338s) Spiro art: Braden- and Craig-style engraved shell, Piasa imagery, a deer-antler mask, spiders, 30 copper axes, mace effigies and "long-nose god" earrings. The long-nose god also appears in Picture Cave, Missouri ([1:14:46](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=4486s)), and the Caddo Wild Boy story explains the long nose ([1:15:11](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=4511s)). - [1:16:20](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=4580s) After the railroad arrived in 1899, looting began; he says James Thorburn reported on the site. In 1933 George Evans sold the right to dig to the Pocola Mining Company ([1:16:51](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=4611s)), whose tunnel reached the "Great Mortuary" in Craig Mound, full of perishables that were destroyed or sold. The Kansas City Star called it "the King Tut of the Arkansas Valley". - [1:19:03](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=4743s) The University of Oklahoma took over from 1936 with a federal work crew he calls the CCC. ![[images/Mississippian-Deep-Dive-t4820.webp]] *Engraving of a charnel house with stacked remains (source credited on screen: Wikimedia)* - [1:19:35](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=4775s) Craig Mound covered charnel houses, a burial custom he traces back to the Adena around 500 BCE ([1:20:43](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=4843s)). - [1:21:27](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=4887s) The Oklahoma Historical Society runs the site; when he went in 2016 it was closed. Since NAGPRA, the Caddo Nation and the Wichita tribe are recognized as descendants ([1:21:42](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=4902s)). ### Aztalan, Wisconsin (1:22:14 to end) - [1:22:37](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=4957s) On the Crawfish River, about an hour west of Milwaukee, occupied about 1000 to 1200 CE and burned around 1200. It had a half-mile palisade 10 ft tall with 33 towers, a plaza of about 20 acres with three mounds (the southwest one 20 ft tall and 150 by 150 ft) and about 500 residents. ![[images/Mississippian-Deep-Dive-t5120.webp]] *Aztalan's interpretive sign on bone, shell and copper artifacts (photo credited on screen: Devon Polzar)* - [1:24:57](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=5097s) About 350 miles from Cahokia, it sat among the local effigy mound builders, with copper from Upper Michigan. About 4,000 effigy mounds survive in Wisconsin ([1:27:40](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=5260s)). - [1:29:08](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=5348s) An inner palisade with towers protected about 70 storage pits, each about 2 m by 2 m. - [1:30:19](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=5419s) The "princess burial", found in 1919 by Samuel Barrett: a woman in her 20s wrapped in about 2,000 shell beads. ![[images/Mississippian-Deep-Dive-t5420.webp]] *The princess burial mound and marker (source credited on screen: megalithic.co.uk)* - [1:31:52](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=5512s) History: a farmer, Timothy Johnson, found the site in 1835; Nathaniel Hyer named it Aztalan after reading Alexander von Humboldt on the Aztec homeland, Aztlan ([1:32:13](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=5533s)); Increase Lapham mapped it in 1850 ([1:32:44](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=5564s)). ![[images/Mississippian-Deep-Dive-t5570.webp]] *Portrait of Increase Allen Lapham (source credited on screen: wisconsinhistory.org)* - [1:33:13](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=5593s) Barrett dug in 1919, 1920 and 1932 and claimed the people were cannibals ([1:33:33](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=5613s)), an idea now rejected; the state bought the land in 1948 and the park opened in 1952. - [1:34:01](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=5641s) Lynne Goldstein of UW–Milwaukee worked there from the 1970s and found the storage pits in 1996; current work uses ground-penetrating radar. The site is sacred to the Ho-Chunk, and its artifacts are at the Milwaukee Public Museum. ![[images/Mississippian-Deep-Dive-t5720.webp]] *Closing: "What site would you like me to talk about next?"* ## Key takeaways - Cahokia set the template that later Mississippian cities copied: platform mounds with elite residences, plazas, chunky, palisades and the SECC art style. - Mississippian religion can be partly reconstructed by comparing descendant tribes' stories, with the Red Horn and twin-hero cycles visible in the art. - Most great sites (Moundville, Etowah, Spiro) were dug badly or looted before modern methods, and NAGPRA has since given descendant nations control over burials and grave goods. - Barnhart is openly skeptical of the 2026 Etowah cacao result until others confirm it. ## Claims check | Claim | Verdict | Notes / source | | --- | --- | --- | | Monks Mound is about 100 ft tall and covers about 14 to 15 acres | Accurate | The NPS landmark brochure gives 100 ft and "more than 14 acres" ([NPS brochure](https://npshistory.com/brochures/nhl/cahokia-mounds.pdf)). | | Monks Mound covers "18 football fields" ([19:32](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=1172s)) | Overstated | About 14 acres is roughly 10 to 11 football fields; it also contradicts his own "15 acres" at [0:47](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=47s). | | Monks Mound is third-largest in the Americas by volume, after the Pyramid of the Sun and Cholula | Broadly accurate | Commonly ranked that way; the NPS calls it the largest prehistoric earthen construction in the Americas. | | Cahokia's palisade was built around 1130, the city emptied by 1150 and was abandoned by 1200 | Earlier than the mainstream chronology | The standard dates put the first palisade around 1175, with rebuilds through about 1275, and abandonment by about 1350 ([Cahokia, Wikipedia](https://en.wikipedia.org/wiki/Cahokia); [NPS brochure](https://npshistory.com/brochures/nhl/cahokia-mounds.pdf)). | | The palisade was about 2 miles long, used about 20,000 logs, and was rebuilt three times | Accurate | Four total builds of about 20,000 logs each (NPS brochure). | | Cahokia had 15,000 to 20,000 people | Accurate as a range | Usually given as 10,000 to 20,000; his "50,000 with satellites" is a high-end estimate. | | Mound 72's beaded burial lay on about 20,000 shell beads, with mass graves of young women and four headless, handless men | Accurate | Matches Melvin Fowler's excavation reports. | | Toltec Mounds is now called Plum Bayou Mounds | Accurate | Arkansas renamed Toltec Mounds Archeological State Park to Plum Bayou Mounds Archeological State Park in the early 2020s. | | Moundville's main plaza covers 320 acres | Overstated | The park preserves 326 acres ([Moundville Archaeological Park](https://moundville.museums.ua.edu/about/)); the ancient site is usually given as about 185 acres ([Encyclopedia of Alabama](https://encyclopediaofalabama.org/article/moundville-archaeological-park/)). The plaza is a small part of that. | | Moundville has 29 mounds and Mound B is about 60 ft tall on about 2 acres | Accurate | The Mound B marker says "nearly 60 feet" and "almost two acres" ([HMDB](https://www.hmdb.org/m.asp?m=144808)). | | The CCC excavated Moundville in the 1930s under Walter B. Jones and David DeJarnette | Accurate | Consistent with the park's history; the figures of 200 men, 75 houses and 2,050 burials were not checked. | | A sheriff Hezekiah Powell claimed a 9-ft skeleton in 1866 | Unverified | No source checked. | | Etowah's Mound A is 63 ft tall on about 3 acres | Accurate | Georgia State Parks gives 63 ft. | | Etowah has about 10 stone statues | Unverified | The well-known pair of painted marble statues came from Mound C, Burial 15, found by Lewis Larson's crew from 1954. The count of 10 was not checked. | | Etowah became a National Historic Landmark in 1965 | Slightly off | It was designated in 1964 ([SAH Archipedia](https://sah-archipedia.org/buildings/GA-01-015-0001)). | | The Tumlins sold Etowah to the state in 1953 | Accurate | SAH Archipedia. | | Sherman spared Tumlin's land because they had served together | Unverified | This is a local tradition; it was not checked. | | John Rogan and Cyrus Thomas dug Etowah for the Smithsonian from 1883 | Accurate | Rogan's Mound C work dates to about 1884 (King, *Southeastern Archaeology*). The captions call him "Joe Rogan". | | A 2026 study found cacao DNA on Etowah potsherds | Accurate | King, Powis, Lanaud et al., "Cacao in the Mississippian World", *PLOS ONE*, 26 Aug 2026 ([PLOS ONE](https://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0353607)). They found fragmented cacao DNA in two of three sherds from 11th to 12th century feasting pits. His cautions about degraded DNA and old collections reflect the authors' own caveats. | | Black drink (yaupon holly) also contains caffeine and theobromine | Accurate | This is why the earlier residue results were ambiguous (noted in the PLOS ONE paper). | | The Pocola Mining Company looted Spiro's Craig Mound from 1933, and the Kansas City Star called it "the King Tut of the Arkansas Valley" | Accurate | [Encyclopedia of Oklahoma History](https://www.okhistory.org/publications/enc/entry?entry=SP012). Digging ran 1933 to 1935. | | The University of Oklahoma took over with the CCC from 1936 | Partly wrong | The 1936 to 1941 excavation used Works Progress Administration (WPA) labor, not the CCC (Encyclopedia of Oklahoma History). | | Spiro descendants are the Caddo Nation and the Wichita | Accurate | They are recognized as descendant tribes. | | Aztalan was named by Nathaniel Hyer after Humboldt's Aztlan, and Barrett found the princess burial in 1919 | Accurate | [Milwaukee Public Museum](https://www.mpm.edu/research-collections/anthropology/online-collections-research/aztalan-collection/site-history). | | Aztalan was occupied about 1000 to 1200 CE | Broadly accurate | The MPM gives the Mississippian village as about 1050 to 1250. | ## Things mentioned ### Books and texts - *Popol Vuh*: the K'iche' Maya creation narrative (anonymous, recorded in the 16th century), cited for its hero twins ([30:36](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=1836s), [33:46](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=2026s)). - Alexander von Humboldt's writings on the Aztecs (no title given), which inspired the name Aztalan ([1:32:13](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=5533s)). - Ed Barnhart's Great Courses lecture series on ancient North America (title not given) ([50:42](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=3042s)). - William Romain's "path of souls" research; he tells viewers to search for it rather than naming a specific book or paper ([31:28](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=1888s)). ### Papers and research - King, Powis, Argout et al., "Cacao in the Mississippian World: Archaeogenomic evidence for T. cacao consumption at the Etowah Site, Georgia", *PLOS ONE* (2026) ([1:01:24](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=3684s)). - Christopher Peebles' 1970s analysis of the Moundville burials ([44:06](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=2646s)). - Chaco Canyon cacao residue findings ([1:03:54](https://www.youtube.com/watch?v=pS4uYLxKCSo&t=3834s)). ### Places - Cahokia and Monks Mound, Mound 72 (Illinois); Plum Bayou Mounds (Arkansas); Moundville (Alabama); Mabila and Mobile; Etowah and the Etowah River (Georgia); Coosa and Etiba; Spiro and Craig Mound (Oklahoma); Picture Cave (Missouri); Oak Hill Village (East Texas); Aztalan and the Crawfish River (Wisconsin); Gottschall rock shelter (Wisconsin); Chaco Canyon (New Mexico); Teotihuacan and Cholula (Mexico); the Pachuca obsidian mines (Mexico); the California Channel Islands. ### Peoples and cultures - Mississippian, Hopewell, Adena, Late Woodland, Coles Creek, Caddoan Mississippian, effigy mound builders; Muscogee (Creek), Choctaw, Chickasaw, Ho-Chunk, Ojibwe, Iroquois, Seminole, Caddo, Wichita, Pueblo, Navajo, Maya, Moche, Chimú. ### Figures from myth - Red Horn (He Who Gets Hit With Deer Lungs), Turtle, Thunderbird, the Piasa or underwater panther, Civilized Boy and Wild Boy, the long-nose god, the Great Spirit. ### Concepts - Southeastern Ceremonial Complex (SECC), chunky, retainer sacrifice, palisades and bastions, platform mounds, charnel houses, black drink, the shatter zone, NAGPRA and repatriation, ground-penetrating radar, ranked societies. ## Biographies ### Ed Barnhart An archaeologist and explorer who directs the Maya Exploration Center and hosts the ArchaeoEd podcast and this YouTube channel. He studied under Linda Schele at the University of Texas at Austin, mapped the Maya city of Palenque, and has recorded several Great Courses lecture series. His channel description also promotes Bars and Dots, a Maya calendar tool he built with software engineer Matt Neel. ### Hernando de Soto (about 1500 to 1542) A Spanish conquistador whose expedition crossed the Southeast from 1539 until his death on the Mississippi in 1542. Its chronicles are the only European eyewitness accounts of Mississippian kingdoms still functioning. ### Tuscaloosa (died 1540) The paramount chief of the Atahachi province in present-day Alabama. He led De Soto into the ambush at Mabila in October 1540, and the city of Tuscaloosa is named after him. ### Clarence B. Moore (1852 to 1936) A wealthy Philadelphia antiquarian who excavated hundreds of mound sites along southern rivers from his steamboat *Gopher of Philadelphia*, publishing large illustrated reports. ### Christopher S. Peebles An archaeologist whose 1970s analysis of the Moundville burials became a classic model of a ranked Mississippian chiefdom. ### Cyrus Thomas (1825 to 1910) and John P. Rogan Thomas led the Smithsonian Bureau of Ethnology's mound survey of the 1880s. That survey helped disprove the "lost race of Mound Builders" myth. Rogan was a field agent for the survey and dug at Etowah's Mound C, where he found the copper plates named after him. ### Warren K. Moorehead (1866 to 1939) An American archaeologist who excavated Etowah's Mound C from 1925 to 1927 and earlier worked at Hopewell and Cahokia. ### Linda Schele (1942 to 1998) A Maya epigrapher at the University of Texas at Austin who did key work on deciphering Maya hieroglyphs. She was Barnhart's mentor. ### William F. Romain An archaeoastronomer who writes on Adena-Hopewell and Mississippian ceremonial landscapes, including the idea of the Milky Way as the path of souls. ### Samuel A. Barrett (1879 to 1965) An anthropologist at the Milwaukee Public Museum. He excavated Aztalan in 1919, 1920 and 1932. ### Increase A. Lapham (1811 to 1875) A Wisconsin naturalist and surveyor who mapped Aztalan and many effigy mounds. His 1855 book *The Antiquities of Wisconsin* records them, though the video doesn't name it. ### Lynne Goldstein An archaeologist (UW–Milwaukee, later Michigan State) who led decades of research at Aztalan.