Operation Paperclip, also known as Project Paperclip, which was the U.S. effort to bring German scientists to the U.S. after World War II. 

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Operation Paperclip, also known as Project Paperclip, which was the U.S. effort to bring German scientists to the U.S. after World War II.  Learn more about your ad-choices at <a href="https://www.iheartpodcastnetwork.com">https://www.iheartpodcastnetwork.com</a>

Join Holly and Tracy as they bring you the greatest and strangest Stuff You Missed In History Class in this podcast by iHeartRadio.

Stuff You Missed in History Class

Operation Paperclip

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/cef4612e-3d40-4ce6-8170-ae2800087d28/transcript

Humans have been exchanging tokens of friendship since before recorded history. From calling cards to Valentines to Christmas cards, the modern greeting card industry evolved.

Research:
“America’s First Christmas Card.” Albany Institute of History and Art. https://www.albanyinstitute.org/online-exhibition/50-objects/section/america-s-first-christmas-card
Britannica Editors. "scarab". Encyclopedia Britannica, 3 Apr. 2014, https://www.britannica.com/topic/scarab
Britannica Editors. "greeting card". Encyclopedia Britannica, 15 Mar. 2024, https://www.britannica.com/topic/greeting-card
Brown, Ellen F. “Christmas, Inc.: A Brief History of the Holiday Card.” JSTOR Daily. Dec. 20, 2015. https://daily.jstor.org/history-christmas-card-holiday-card/
Chase, Ernest Dudley. “The Romance of Greeting Cards.” Rust Craft. Cambridge, MA. 1956.
“Dali at Hallmark.” Hallmark Art Collection. https://www.hallmarkartcollection.com/creatively-thinking/stories/dali-at-hallmark/
“Esther Howland 1847.” Mount Holyoke. https://www.mtholyoke.edu/directory/alum/esther-howland
Evans, Elaine Altman. “The Sacred Scarab, Occasional Paper.” McClung Museum of Natural History and Culture. University of Tennessee. January 1, 1996. https://mcclungmuseum.utk.edu/1996/01/01/sacred-scarab/
Greeting Card Association. “The History of Greeting Cards.” https://www.greetingcard.org/history/
Hanc, John. “The History of the Christmas Card.” Smithsonian. Dec. 9, 2015. https://www.smithsonianmag.com/history/history-christmas-card-180957487/
Henry, William E. “Art and Cultural Symbolism: A Psychological Study of Greeting Cards.” The Journal of Aesthetics and Art Criticism, vol. 6, no. 1, 1947, pp. 36–44. JSTOR, https://doi.org/10.2307/426176
Kavanagh, Marybeth. “Louis Prang, Father of the American Christmas Card.” The New York Historical. Dec. 19, 2012. https://www.nyhistory.org/blogs/prang
Koon, Wee Kek. “How ancient Chinese new year cards went from elites’ greetings to bribery instruments.” South China Morning Post. Jan. 31, 2026. https://www.scmp.com/lifestyle/chinese-culture/article/3341675/how-ancient-chinese-new-year-cards-went-elites-greetings-bribery-instruments?module=perpetual_scroll_0&pgtype=article
Korolkov, Maxim. “‘Greeting Tablets’ in Early China: Some Traits of the Communicative Etiquette of Officialdom in Light of Newly Excavated Inscriptions.” T’oung Pao, vol. 98, no. 4/5, 2012, pp. 295–348. JSTOR, http://www.jstor.org/stable/41725988
Lee, Ruth Webb. “A History of Valentines.” 1984.
Newberry, Percy E. “Scarabs: An Introduction to the Study of Egyptian Seals and Signet Rings.” London. Archibald Constable and Co. Ltd. 1908. https://dn790001.ca.archive.org/0/items/scarabsintroduc00newbuoft/scarabsintroduc00newbuoft.pdf
Purcell, Denise. “Authentic Messaging and Independent Makers Drive Greeting Cards' Next-Gen Relevance.” U.S. Chamber of Commerce. https://www.uschamber.com/co/good-company/launch-pad/greeting-card-next-gen-relevance#:~:text=The%20category%20is%20massive:%20According,card%20market%20at%20$7%20billion.
Grafton, Samuel. “Holly Leaf and Copper Plate.” The North American Review, vol. 226, no. 6, 1928, pp. 660–64. JSTOR, http://www.jstor.org/stable/25110633
Shoichet, Catherine E. “This ‘visionary’ woman changed the way many Americans celebrate Valentine’s Day.” CNN. Feb. 14, 2024. https://edition.cnn.com/2024/02/13/style/esther-howland-valentines-card-history-cec
Schmidt, Leigh Eric. “The Commercialization of the Calendar: American Holidays and the Culture of Consumption, 1870-1930.” The Journal of American History, vol. 78, no. 3, 1991, pp. 887–916. JSTOR, https://doi.org/10.2307/2078795
Stupperich, Andy. “Art Education: Louis Prang's Christmas Card Competitions.” The Henry Ford Museum. January 29, 2026. https://www.thehenryford.org/collections/explore/articles/art-education-louis-prang%27s-christmas-card-competitions
Terrell, Ellen. “Esther Howland and the Business of Love.” Library of Congress. March 23, 2016. https://blogs.loc.gov/inside_adams/2016/03/esther-howland-and-the-business-of-love/
“World's first printed Valentine's Card.” A History of the World. BBC. 2014. https://www.bbc.co.uk/ahistoryoftheworld/objects/L1NM_6mWRymAMKXcRDlXJA
Wright, Helena E. “A winning design: Prang’s Christmas card contests of the 1880s.” National Museum of American History. December 23, 2019. https://americanhistory.si.edu/explore/stories/winning-design-prangs-christmas-card-contests-1880s

Humans have been exchanging tokens of friendship since before recorded history. From calling cards to Valentines to Christmas cards, the modern greeting card industry evolved.
Research:
<ul>
<li>&ldquo;America&rsquo;s First Christmas Card.&rdquo; Albany Institute of History and Art. https://www.albanyinstitute.org/online-exhibition/50-objects/section/america-s-first-christmas-card</li>
<li>Britannica Editors. "scarab".&nbsp;Encyclopedia Britannica, 3 Apr. 2014, https://www.britannica.com/topic/scarab</li>
<li>Britannica Editors. "greeting card".&nbsp;Encyclopedia Britannica, 15 Mar. 2024, https://www.britannica.com/topic/greeting-card</li>
<li>Brown, Ellen F. &ldquo;Christmas, Inc.: A Brief History of the Holiday Card.&rdquo; JSTOR Daily. Dec. 20, 2015. https://daily.jstor.org/history-christmas-card-holiday-card/</li>
<li>Chase, Ernest Dudley. &ldquo;The Romance of Greeting Cards.&rdquo; Rust Craft. Cambridge, MA. 1956.</li>
<li>&ldquo;Dali at Hallmark.&rdquo; Hallmark Art Collection. https://www.hallmarkartcollection.com/creatively-thinking/stories/dali-at-hallmark/</li>
<li>&ldquo;Esther Howland 1847.&rdquo; Mount Holyoke. https://www.mtholyoke.edu/directory/alum/esther-howland</li>
<li>Evans, Elaine Altman. &ldquo;The Sacred Scarab, Occasional Paper.&rdquo; McClung Museum of Natural History and Culture. University of Tennessee. January 1, 1996. https://mcclungmuseum.utk.edu/1996/01/01/sacred-scarab/</li>
<li>Greeting Card Association. &ldquo;The History of Greeting Cards.&rdquo; https://www.greetingcard.org/history/</li>
<li>Hanc, John. &ldquo;The History of the Christmas Card.&rdquo; Smithsonian. Dec. 9, 2015. https://www.smithsonianmag.com/history/history-christmas-card-180957487/</li>
<li>Henry, William E. &ldquo;Art and Cultural Symbolism: A Psychological Study of Greeting Cards.&rdquo;&nbsp;The Journal of Aesthetics and Art Criticism, vol. 6, no. 1, 1947, pp. 36&ndash;44.&nbsp;JSTOR, https://doi.org/10.2307/426176</li>
<li>Kavanagh, Marybeth. &ldquo;Louis Prang, Father of the American Christmas Card.&rdquo; The New York Historical. Dec. 19, 2012. https://www.nyhistory.org/blogs/prang</li>
<li>Koon, Wee Kek. &ldquo;How ancient Chinese new year cards went from elites&rsquo; greetings to bribery instruments.&rdquo; South China Morning Post. Jan. 31, 2026. https://www.scmp.com/lifestyle/chinese-culture/article/3341675/how-ancient-chinese-new-year-cards-went-elites-greetings-bribery-instruments?module=perpetual_scroll_0&amp;pgtype=article</li>
<li>Korolkov, Maxim. &ldquo;&lsquo;Greeting Tablets&rsquo; in Early China: Some Traits of the Communicative Etiquette of Officialdom in Light of Newly Excavated Inscriptions.&rdquo;&nbsp;T&rsquo;oung Pao, vol. 98, no. 4/5, 2012, pp. 295&ndash;348.&nbsp;JSTOR, http://www.jstor.org/stable/41725988</li>
<li>Lee, Ruth Webb. &ldquo;A History of Valentines.&rdquo; 1984.</li>
<li>Newberry, Percy E. &ldquo;Scarabs: An Introduction to the Study of Egyptian Seals and Signet Rings.&rdquo; London. Archibald Constable and Co. Ltd. 1908. https://dn790001.ca.archive.org/0/items/scarabsintroduc00newbuoft/scarabsintroduc00newbuoft.pdf</li>
<li>Purcell, Denise. &ldquo;Authentic Messaging and Independent Makers Drive&nbsp;Greeting Cards' Next-Gen Relevance.&rdquo; U.S. Chamber of Commerce. https://www.uschamber.com/co/good-company/launch-pad/greeting-card-next-gen-relevance#:~:text=The%20category%20is%20massive:%20According,card%20market%20at%20$7%20billion.</li>
<li>Grafton, Samuel. &ldquo;Holly Leaf and Copper Plate.&rdquo;&nbsp;The North American Review, vol. 226, no. 6, 1928, pp. 660&ndash;64.&nbsp;JSTOR, http://www.jstor.org/stable/25110633</li>
<li>Shoichet, Catherine E. &ldquo;This &lsquo;visionary&rsquo; woman changed the way many Americans celebrate Valentine&rsquo;s Day.&rdquo; CNN. Feb. 14, 2024. https://edition.cnn.com/2024/02/13/style/esther-howland-valentines-card-history-cec</li>
<li>Schmidt, Leigh Eric. &ldquo;The Commercialization of the Calendar: American Holidays and the Culture of Consumption, 1870-1930.&rdquo;&nbsp;The Journal of American History, vol. 78, no. 3, 1991, pp. 887&ndash;916.&nbsp;JSTOR, https://doi.org/10.2307/2078795</li>
<li>Stupperich, Andy. &ldquo;Art&nbsp;Education:&nbsp;Louis&nbsp;Prang's&nbsp;Christmas&nbsp;Card&nbsp;Competitions.&rdquo; The Henry Ford Museum. January 29, 2026. https://www.thehenryford.org/collections/explore/articles/art-education-louis-prang%27s-christmas-card-competitions</li>
<li>Terrell, Ellen. &ldquo;Esther Howland and the Business of Love.&rdquo; Library of Congress. March 23, 2016. https://blogs.loc.gov/inside_adams/2016/03/esther-howland-and-the-business-of-love/</li>
<li>&ldquo;World's first printed Valentine's Card.&rdquo; A History of the World. BBC. 2014. https://www.bbc.co.uk/ahistoryoftheworld/objects/L1NM_6mWRymAMKXcRDlXJA</li>
<li>Wright, Helena E. &ldquo;A winning design: Prang&rsquo;s Christmas card contests of the 1880s.&rdquo; National Museum of American History. December 23, 2019. https://americanhistory.si.edu/explore/stories/winning-design-prangs-christmas-card-contests-1880s</li>
</ul>

Humans have been exchanging tokens of friendship since before recorded history. From calling cards to Valentines to Christmas cards, the modern greeting card industry evolved.

Greeting Cards

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/15db5476-4ec5-406d-87ed-b433014519a8/transcript

This 2019 episode covers the color blue, the most popular color in many parts of the world. But many ancient languages didn’t have a word for blue, and some languages still don’t.

This 2019 episode covers the color blue, the most popular color in many parts of the world. But many ancient languages didn&rsquo;t have a word for blue, and some languages still don&rsquo;t.

SYMHC Classics: The Color Blue

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/8122f2be-92cb-4043-b931-b433010fbe43/transcript

Tracy shares struggles that she encountered pulling together this edition of Unearthed. She and Holly have a tangential discussion about AI.

Tracy shares struggles that she encountered pulling together this edition of Unearthed. She and Holly have a tangential discussion about AI.

Behind the Scenes Minis: Dicey Sources

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/56c06e34-7da8-48fc-914a-b433010eba0e/transcript

Operation Paperclip

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