Audio is streamed directly from the publisher (podtrac.com) as published in their RSS feed. Play Podcasts does not host this file. Rights-holders can request removal through the copyright & takedown page.
Show Notes
It's now a childhood classic, but the modern Crayola crayon has roots in the same company where carbon black was made for car tires at the turn of the 20th century. But people were creating art with colored implements before Binney and Smith made theirs.
Learn more about your ad-choices at https://www.iheartpodcastnetwork.com
See omnystudio.com/listener for privacy information.