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Sherman’s March to the Sea (Encore)
Just one week after President Abraham Lincoln was re-elected in November 1864, Union General William Tecumseh Sherman set out to execute one of the m…
1 year ago
Sede Vacante and The Process of Papal Succession
Episode 1752
After the death or resignation of a pope, but before the election of a new pope, there is a period of time at the Vatican known as Sede Vacante.
The …
1 year ago
The Medici Family and Renaissance Florence
Episode 1751
One of the greatest periods of social and technological change in world history was the Renaissance.
At the heart of the Renaissance was the city-sta…
1 year ago
The Battle of Marathon (Encore)
Episode 1750
In the year 490 BC, one of the most pivotal battles in world history took place.
Just north of the City of Athens, Persian and Greek forces clashed i…
1 year ago
Global Reserve Currencies and the Triffin Dilemma
Episode 1749
Today, approximately 160 currencies are used worldwide. Some countries share the same currency, while others use the currency of another country.
How…
1 year ago
Biological Taxonomy and the Tree of Life
Episode 1748
All living things on the planet Earth, from microbes to whales, can be categorized into a single hierarchical system.
This system has been developed …
1 year ago
The Search for Life Outside the Solar System
Episode 1747
In 1995, the first planet outside our solar system was discovered.
Since then, with improved techniques and tools, over 5,000 exoplanets have been co…
1 year ago
Rare Earth Elements (Encore)
Episode 1746
Modern society is completely dependent on a set of technologies that include computer chips, fiber optic cables, lasers, video screens, electric moto…
1 year ago
The History of Wire
Episode 1745
The modern world runs on metal wires.
These thin metal strands literally circle the globe and are responsible for much of the world’s electrical powe…
1 year ago
The Occupation and Liberation of Paris
Episode 1744
Of all the cities that experienced the Second World War, one of the most interesting stories is that of Paris.
Paris was not the scene of major fight…
1 year ago