The idea of progress

There are a number of key moments in the history of scientific progress over the last few hundred years. We often hear about new factories and Fordism, or about transport and railways. Communications though are just as important, and here is one highlight from communication history : the first transatlantic cable, allowing for the very first time instantaneous communication across the world, by telegraph. Before you click on the link to the documentary, guess the date of the first transatlantic cable.

https://www.youtube.com/watch?v=2UTrqHZf7Cg