*Sample* | 1-Hour History of Rubber: Discovery, Early Uses, Charles Goodyear, & Visit to a Rubber Plantation (Bonus Episode #22)

The full version of this episode (~1 hour & Ad-free) is available for Silk+ Members ( FREE for a limited time! ) and includes access to 600 more episodes from these podcasts: Calm History (70+ episodes) Sleep Whispers (430+ episodes) ASMR Sleep Station (50+ episodes) 1 & 8-Hour Nature Sounds (50+ episodes) 1 & 8-Hour Background Sounds (30 episodes) Counselor Curt ASMR (20+ episodes) ASMR University (10 episodes) ************************************* Become a Silk+ Member for FREE [ silkpodcasts.com/plus ] To get alerts of new episodes, tap “ Follow “ on [ Apple or Spotify ] Shape the future of Calm History [ Vote Now ] Website, Contact, & All My Podcasts [ silkpodcasts.com ] Explore my Favorite Goodies [ silkpodcasts.com/faves ] Visit the Silk+ Expo [ silkpodcasts.com/expo ] https://media.blubrry.com/1465375/sleepwithsilk.com/wp-content/uploads/2023/11/26ch-1-sample-bonus-1h-bundle-rubber.mp3 ************************************ Calm History is part of the Airwave Media podcast network: AirwaveMedia.com Contact sales@advertisecast.com if you would like to advertise on this podcast.