Today In History with The Retrospectors

Dynamite was invented by Swedish chemist Alfred Nobel, who demonstrated it in Britain for the first time on 14th July, 1867. He had discovered that when nitroglycerin, an explosive liquid, was absorbed by kieselguhr, a porous siliceous earth, it produced a solid that was resistant to shock but readily detonable by heat or percussion, making it safer to handle.

Nobel named his invention “dynamite” after the Greek word “dynamis,” meaning "power". His invention revolutionized the construction industry and made possible many engineering feats such as the construction of canals, tunnels, and roads, and also had a significant impact on mining, quarrying, and demolition operations.

In this episode, Arion, Rebecca and Olly explore the ‘obituary’ legend that supposedly explained Nobel’s creation of the Nobel Prizes; uncover the extraordinary approach the Swede took to health and safety in his factories; and reveal how staggeringly little it cost to buy a stick of dynamite in New York City in 1910… 

Further Reading:

• ‘How Dynamite Spawned the Nobel Prizes’ (McGill University, 2021): https://www.mcgill.ca/oss/article/history/how-dynamite-spawned-nobel-prizes

• ‘This week in science history - The first demonstration of dynamite’ (The Naked Scientists, 2009): https://www.thenakedscientists.com/articles/interviews/week-science-history-first-demonstration-dynamite

• ‘Alfred Nobel: From Dynamite to the Nobel Peace Prize’ (Nobel Peace Center, 2022): https://www.youtube.com/watch?v=diaUxeVsg-4

Love the show? Support us! 

Join  🌴CLUB RETROSPECTORS🌴to DITCH THE ADS and get an additional full-length episode each SUNDAY… 

… Plus, get weekly bonus bits, and unlock over 100 bits of extra content. 

Join now with a free trial on Apple Podcasts or Patreon and support our show ❤️

The Retrospectors are Olly Mann, Rebecca Messina & Arion McNicoll, with Matt Hill.

Theme Music: Pass The Peas. Announcer: Bob Ravelli. Graphic Design: Terry Saunders. Edit Producer: Ollie Peart.

Copyright: Rethink Audio / Olly Mann 2026.

This episode originally aired in 2023.

#Science #Discoveries #Sweden #1800s
Learn more about your ad choices. Visit podcastchoices.com/adchoices

Designed as a temporary billboard for a luxury housing development, the iconic ‘Hollywood’ sign (originally spelling out ‘Hollywoodland’) was dedicated on July 13th, 1923. It was intended to last 18 months. Over a century later, it remains.

Erected at cost of $21,000—about $360,000 today—and lit by 4,000 bulbs that flashed dramatically in segments (“Holly,” then “Wood,” then “Land,”), the sign fell into disrepair by the late 1970s - when an unlikely alliance of Hugh Hefner and Alice Cooper came to the rescue…

In this episode, Arion, Olly and Rebecca trace the rise of the Los Angeles suburbs from citrus groves to a filmmaking mecca; unearth the singular, diligent German immigrant who was responsible for the sign’s upkeep; and consider the glorious successor the iconic signed spawned: in Basildon…

Further Reading:

• ‘The Hidden History of the Hollywood Sign’ (Smithsonian Magazine, 2023): https://www.smithsonianmag.com/history/the-hidden-history-of-the-hollywood-sign-180982518/

• ‘As the Hollywood sign turns 100, Los Angeles is in no mood to party’ (The Washington Post, 2023): https://www.washingtonpost.com/nation/2023/11/02/hollywood-sign-los-angeles-100-years/

• ‘Archive aerial footage shows Hollywoodland sign in 1930’ (Mail Online, 2015): https://www.youtube.com/watch?v=lixq_XtJnww

Love the show? Support us! 

Join  🌴CLUB RETROSPECTORS🌴to DITCH THE ADS and get an additional full-length episode each SUNDAY… 

… Plus, get weekly bonus bits, and unlock over 100 bits of extra content. 

Join now with a free trial on Apple Podcasts or Patreon and support our show ❤️

The Retrospectors are Olly Mann, Rebecca Messina & Arion McNicoll, with Matt Hill.

Theme Music: Pass The Peas. Announcer: Bob Ravelli. Graphic Design: Terry Saunders. Edit Producer: Ollie Peart.

Copyright: Rethink Audio / Olly Mann 2026.
Learn more about your ad choices. Visit podcastchoices.com/adchoices

The Scopes Monkey Trial - one of the most famous show trials in U.S. history - began in Dayton, Tennessee on 10th July, 1925. 

Though it centred on John T. Scopes - a high school teacher put on trial for teaching evolution - he was actually a substitute teacher who may never have really taught the textbook concerned, and had put himself in the frame to test the Butler Act, a Tennessee law prohibiting the teaching of any theory that contradicted the biblical account of creation.

The trial transformed Dayton into a chaotic carnival. Spectators and journalists from around the world flocked to the small town, which became a hub of street preachers, revival tents, and vendors selling Bibles and toy monkeys. 

Both sides of the trial brought in heavyweights: William Jennings Bryan, renowned fundamentalist and three-time presidential candidate, volunteered to assist the prosecution, while the famous defence attorney Clarence Darrow, took up Scopes' defence. 

In this episode, Arion, Rebecca and Olly explain how the trial came to be heard out on the courthouse lawn; explain what happened to Scopes after receiving his sentence; and reveal which real-life monkeys were harmed in the making of the trial… 

Further Reading:

• ‘Scopes Monkey Trial: The Historic Trial That Began 90 Years Ago’ (TIME, 2015): https://time.com/3952775/scopes-monkey-trial-1925/

• ‘Timeline: Remembering the Scopes Monkey Trial’ (NPR, 2005): https://www.npr.org/2005/07/05/4723956/timeline-remembering-the-scopes-monkey-trial

• ’Inherit the Wind’ (MGM, 1960): https://www.youtube.com/watch?v=vtNdYsoool8

We'll be back on Monday - unless you join CLUB RETROSPECTORS, where we give you ad-free listening AND a full-length Sunday episode every week!Plus, weekly bonus content, unlock over 70 bonus bits, and support our independent podcast.Join now via Apple Podcasts or Patreon. Thanks!The Retrospectors are Olly Mann, Rebecca Messina & Arion McNicoll, with Matt Hill.Theme Music: Pass The Peas. Announcer: Bob Ravelli. Graphic Design: Terry Saunders. Edit Producer: Ollie Peart.Copyright: Rethink Audio / Olly Mann 2026.

This episode originally aired in 2024.
Learn more about your ad choices. Visit podcastchoices.com/adchoices

One of the BBC’s biggest-ever flops, soap opera ‘Eldorado’, broadcast its final episode on 9th July, 1993 - just one year after it had begun, at a reported cost of £10 million.

Focussing on the glamorous lives of British expats - fusing the elements of ‘EastEnders’ and ‘Neighbours’ - it had seemed destined to be a sure-fire hit. So, a large permanent set for the fictional town of Los Barcos was built from scratch in the Costa Del Sol. These days it is used for paint-balling.

In this episode, Olly, Rebecca and Arion unearth Rupert Murdoch’s alleged attempts to sabotage the soap; consider whether it was actually rather more successful an enterprise than it was given credit for at the time; and reveal which cancelled TV shows they’d resurrect, if only they could...

Further Reading:

• The final scene and closing credits of ‘Eldorado’ (BBC, 1993): https://www.youtube.com/watch?v=4TfR15KgC6w

• ‘Sun, sea and subtitles - how Eldorado became TV's biggest flop’ (The Guardian, 2018): https://www.theguardian.com/tv-and-radio/2018/jul/09/eldorado-bbc-one-soap-opera

• Los Barcos - the Unofficial Eldorado Website: http://www.losbarcos.org.uk/

Love the show? Support us! 

Join  🌴CLUB RETROSPECTORS🌴to DITCH THE ADS and get an additional full-length episode each SUNDAY… 

… Plus, get weekly bonus bits, and unlock over 100 bits of extra content. 

Join now with a free trial on Apple Podcasts or Patreon and support our show ❤️

The Retrospectors are Olly Mann, Rebecca Messina & Arion McNicoll, with Matt Hill.

Theme Music: Pass The Peas. Announcer: Bob Ravelli. Graphic Design: Terry Saunders. Edit Producer: Ollie Peart.

Copyright: Rethink Audio / Olly Mann 2026.

This episode originally aired in 2021.

#90s #TV #Person #UK 
Learn more about your ad choices. Visit podcastchoices.com/adchoices

Promenades Aériennes, the world’s first modern rollercoaster, opened in Paris on 8th July, 1817. Thrillseekers climbed a towering wooden structure before being sent gliding back down on wheeled carriages attached securely to rails; modest by modern standards, yes, but introducing many of the key features that still define coasters today.

Visitors faced a lengthy climb to the summit before enjoying their gravity-powered descent, with cafés thoughtfully placed along the staircase for those needing a rest. And the journey itself demanded a degree of bravery: there were no seat belts or safety bars, and passengers simply held on as the carriage swept down the track. 

In this episode, Arion, Rebecca and Olly trace the idea of the proto-rollercoaster back to Catherine the Great’s Russia; explain how goldrush-era mining trains inspired the Switchback Railway at Coney Island in 1884; and consider how little about coaster design really changed until Disney brought in tubular steel in 1955… 

Further Reading:

• ‘Object: Promenades Aeriennes Jardin Baujon’ (British Museum) https://www.britishmuseum.org/collection/object/P_1899-0713-182

• ‘First Roller Coaster in America Opened at Coney Island’ (The Association of Mature American Citizens, 2026): https://amac.us/newsline/lifestyle/first-roller-coaster-in-america-opens/

• ‘10 Of The Best Roller Coasters in the UK! Front Seat POVs!’ (Theme Park Review, 2025): https://www.youtube.com/watch?v=tU-tmfOQo9E

#France #1800s #Design #NewYork

Love the show? Support us! 

Join  🌴CLUB RETROSPECTORS🌴to DITCH THE ADS and get an additional full-length episode each SUNDAY… 

… Plus, get weekly bonus bits, and unlock over 100 bits of extra content. 

Join now with a free trial on Apple Podcasts or Patreon and support our show ❤️

The Retrospectors are Olly Mann, Rebecca Messina & Arion McNicoll, with Matt Hill.

Theme Music: Pass The Peas. Announcer: Bob Ravelli. Graphic Design: Terry Saunders. Edit Producer: Ollie Peart.

Copyright: Rethink Audio / Olly Mann 2026.

Learn more about your ad choices. Visit podcastchoices.com/adchoices