Why was Roman Concrete Forgotten during the Middle Ages?

YouTube ^ | November 12, 2021 | toldinstone channel

[SunkenCiv]

For centuries, concrete was everywhere in Roman Italy: in the awesomely durable breakwaters of artificial harbors, in the soaring vaults of great baths, in the foundations of the Colosseum, and - of course - in the spectacular dome of the Pantheon. But during late antiquity, concrete all but vanished from the Mediterranean world, and would not be used widely again until the twentieth century. This video explains why.

Chapters:
0:00 Introduction
0:39 Understanding Roman concrete
1:29 Early experiments
2:25 The apogee
3:33 Squarespace!
4:19 Geographic limits of Roman concrete
5:00 The decline of concrete
6:28 Final notices
7:26 Not forgotten, but gone

Why was Roman Concrete Forgotten during the Middle Ages? | November 12, 2021 | toldinstone

[Paladin2]

https://web.uvic.ca/~jpoleson/ROMACONS/Caesarea2005.htm

[SunkenCiv]

The Great Library wasn’t burned by Julius Caesar. Had it been, it wouldn’t have been around to be replaced (crumbling papyrus with parchment) during the Roman era, and then burned by order of the caliph after the muzzie conquest of Egypt.

[SunkenCiv]

As much as 40% of the city were slaves, so, good idea to keep them busy.

[Gaffer]

Yes, that’s one thing I remember in writings and videos about it.....

[PIF]

The Great Library wasn’t burned by Julius Caesar.
—
I wrote Caesar Antony not, Caesar Julius. It was during his attack on Alexandria leading up to hooking up with Ms. Cleo

👓 in your future

[SunkenCiv]

> I wrote Caesar Antony

Whomever that is. AFAIK, Antony never claimed the title, although he did manage to assume some of Julius Caesar’s power and role.

[PIF]

You know who I meant. Don’t be coy here.

[SunkenCiv]

Hey, I’m a coy guy.

Marc Antony never burned the library, either. He seized the collection of books at Pergamum and gifted it to the Library of Alexandria.

[PIF]

He seized the collection of books at Pergamum

—
That was before the war, and it was the collection of books at Penguin Group ...

[DeFault User]

They also forgot how to Wash during the Middle Ages

That you can blame on the Christians (looking at your own body was evil). The Moors in Spain were very fond of bathing and constructed some very elaborate systems for fountains and waterways to "air condition" the palaces, the Alhambra being a good example.

Unfortunately, the early "enlightened" Moors were replaced by the fanatic Muslims.