In watching these videos it occurs to me how fortunate we have been to have camera's, especially moving picture cameras, to record the early beginnings of aviation and flying machines. And many other innovations of the Industrial Revolution in America.
Recording sound began in 1877 with Thomas Edison but wasn't available (as part of a movie film) on the movie screen until 1927. The best the ancient civilizations could do was paint scenes on walls and keep records of events on tablets where some of the languages are lost to us now.
At least we've been able to photo document much of that should the worst happen, earth quakes, wars, storms, etc....it isn't lost forever.
It makes a good argument for all of us traveling as Nomads to consider taking lots of pictures and sharing them online for future travelers to enjoy and learn by. One of the big take aways is to show how humble those of our past were in at least trying out their ideas. So often people are spoiled to having factory made products that work right out of the box, that they don't even consider trying to make or build something themselves much less attempting to modify something they have to better suit their needs.