Why did it take so long to invent the stirrup, when it seems such a simple innovation and it had such an impact on the use of cavalry and warfare? - Quora
A Brief Saddle History – Buckaroo Leather Products
When and where was the stirrup invented? | Ophena
Finding the 'Right' Stirrup Length - HorseClass
The Invention of the Saddle Stirrup
Oklahoma inventor says locking stirrup design is a big innovation in Western saddle industry
Was the stirrup--so important in battle--invented during the Middle Ages, or by the Anglo-Saxons who fought/absorbed the Vikings of the 8th and 9th centuries? - Quora
Iron, Oxbows, and Dog Houses: The History of the Stirrup - Quarter Horse News
Saddle and Stirrups | V&A Explore The Collections
Stirrups - Designs from around the World - In The Saddle
Saddle: Most Up-to-Date Encyclopedia, News & Reviews