Primate and Global Cities
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9 Mar 202514min
Artificial Turf
In 1965, the world’s first full enclosed sports facility, the Houston Astrodome, was opened to the public. The Astrodome itself was a marvel of engineering, but because it was enclosed, the grass th...
8 Mar 202516min
Hydropower
For thousands of years, humans have used the power of water to do work for them. At first, it was very simple, then it gradually evolved to more complex and more efficient devices to harness the pow...
7 Mar 202514min
The Maginot Line (Encore)
After the First World War in France, many generals thought that the end of the war was really just a pause before another war began. They wanted to make sure that the next time war broke out with Germ...
6 Mar 202513min
The Underground Railroad
Before the US Civil War, a group of abolitionists didn’t just sit around passively to wait for the end of slavery to arrive. They took matters into their own hands. They set up a clandestine network...
5 Mar 202516min
Timor-Leste (East Timor)
Located in the Indonesian Archipelago, it is one of the newest countries in the world, Timor-Leste, or, as it's sometimes known in English, East Timor. While geographically very close, and pretty muc...
4 Mar 202516min
The Academy Awards
On May 16, 1929, 270 people assembled in the Hollywood Roosevelt Hotel's Blossom Room. They were there to honor the highest achievements in filmmaking over the last year. It was not broadcast on rad...
3 Mar 202515min
The Year 1700
Over 300 years ago, humanity was in the early stages of what would be its greatest transformation in history. Around the world, there were new ideas that were just starting to take root. That isn’t...
2 Mar 202515min
