3/4 In February 1882 the SS Dunedin departed New Zealand on a voyage that would revolutionise the way we eat and kickstart the world's food supply chain. Aboard were thousands of mutton, lamb and pig carcasses as well as 250 kegs of butter, hare, pheasant, turkey, chicken and 2226 sheep tongues. This cargo would be kept fresh in the ship's hold using a state-of-the-art Bell-Coleman compression refrigeration machine and would mark the first time fresh goods had ever been transported over such a distance. However, the route was far from plain sailing...

For the third story in our series 'Ships that Made the British Empire' series, Dan is joined by Senior Archivist Max Wilson and former colleague Charlotte Ward from Lloyd's Register Foundation whose archives hold the greatest stories of Britain's maritime history. You can find out more about Lloyd's Register Foundation's history and its work that supports research, innovation and education to help the global community tackle the most pressing safety and risk challenges. Just go to https://hec.lrfoundation.org.uk/

Produced by Mariana Des Forges and edited by Dougal Patmore. Peta Stamper is the production manager for this series, 'Ships that Made the British Empire'.

We'd love to hear from you - what do you want to hear an episode on? You can email the podcast at ds.hh@historyhit.com.

You can take part in our listener survey here.

How unprecedented is Joe Biden's sudden withdrawal from the presidential race? He's given his endorsement to Kamala Harris to take his place, but not all Democrats have, including former president Barack Obama. How will a new candidate be chosen? Dan is joined by Professor of American History at the University of Cambridge Gary Gerstle to look back to 20th-century presidential campaigns that may shed light on what could happen next and unpick the 'political conventions' process of electing a new candidate.

Produced by Dan Snow, Mariana Des Forges & edited by Dougal Patmore

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We'd love to hear from you - what do you want to hear an episode on? You can email the podcast at ds.hh@historyhit.com.

You can take part in our listener survey here.

On the 80th anniversary of the 20th of July Plot, Dan explores the dramatic events when members of Germany's military and political elite attempted to kill the führer and launch Operation Valkyrie to overthrow his government.

Joining us today is the historian and journalist Nigel Jones, author of Countdown to Valkyrie: The July Plot to Assassinate Hitler. All told, over 40 attempts were made to assassinate Adolf Hitler - and those are just the ones that we know of. Nigel takes us through some of the most famous attempts to assassinate Hitler and the 20th July Plot that came the closest to toppling the Third Reich.

Produced by Mariana Des Forges and edited by Dougal Patmore

Enjoy unlimited access to award-winning original documentaries that are released weekly and AD-FREE podcasts. Sign up HERE for 50% off for 3 months using code ‘DANSNOW’.

We'd love to hear from you - what do you want to hear an episode on? You can email the podcast at ds.hh@historyhit.com.

You can take part in our listener survey here.

You can take part in our listener survey here.