[ExI] surprise invention

[Darin Sunley]

Yeah, this is one of those things that is common knowledge to basically
every student of military history, but that almost no one outside
their field has ever heard of.

On Thu, Jan 26, 2023 at 9:16 AM William Flynn Wallace via extropy-chat <
extropy-chat at lists.extropy.org> wrote:

> (from Wikipedia)  .......was one of the basic tools
> <https://en.wikipedia.org/wiki/Tool> used to create and spread modern
> civilization <https://en.wikipedia.org/wiki/Civilization>, possibly as
> important as the wheel <https://en.wikipedia.org/wiki/Wheel> or printing
> press <https://en.wikipedia.org/wiki/Printing_press>.[4]
> <https://en.wikipedia.org/wiki/Stirrup#cite_note-Baber_1996-4>
> scroll down for answer after not coming up with anything,like me  bill w
>
>
>
>
>
> the stirrup - enabled fighting from horseback
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