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No, pigs' fat was not used in the construction of Roman concrete. Roman concrete, known as "opus caementicium," was made primarily from volcanic ash, lime (calcium oxide), and aggregates such as pieces of brick or rock. The key ingredient, volcanic ash, often came from regions like Pozzuoli near Naples, which is why it is sometimes called pozzolana. This combination of materials gave Roman concrete its exceptional durability and ability to set underwater, which was crucial for constructing harbors and other structures. Recent research has highlighted the role of specific chemical reactions between the lime and volcanic ash in the concrete's long-term durability, but there is no historical or scientific evidence to suggest that animal fat, including pigs' fat, was part of the recipe.
First story Odin wanted a chain but the dwarves pointed out that a chain is only as good as it's weakest link so they made a cord/rope to bind Fenrir with. It was also prophecy that Odin would be killed by a giant wolf so he banned wolves from Asgard and the death of Baulder would be the start of Ragnarok. Though I agree with the points you're making one point in the first story of binding Fenrir can also be that what you want isn't always best and to seek counsel from others.
This siege and what happened afterward can win the award of the worst barbarism action of the history in parallel with the Genocide of the Armenians in 1915 by the same Ottoman empire.
It's very very very obvious the Egyptians INHERITED the stonework. The pyramid being ""made in 2500bc as a tomb for Khufu"" is literally a WILD GUESS made just 150 years ago.
Annunaki built the pyramids and all the ancient architecture around the world 🌎🌍 including the Mayans dynasty they may have been religious zealots their religion my have been Islam they may have been Muslims these ancient Egypt Babylon Assyria , Elam ,