The earliest example of equine footwear we have is made of animal hide and dates from about 600 B.C. This primitive hoof protector looks more like a horse bootie than what we think of today as a horseshoe. It was probably stuffed with dried grass or other available natural material and tied on with hide thongs.
The spiral model is a software development process combining elements of both design and prototyping-in-stages, in an effort to combine advantages of top-down and bottom-up concepts. The spiral model was defined by Barry Boehm in his article A Spiral Model of Software Development and Enhancement from 1985. This model was not the first model to discuss iterative development, but it was the first model to explain why the iteration matters.
The Babylonians made and utilized a single-tube seed drill, but the exact year is not known. It was sometime around 1500 BC. The Chinese developed a multi-tube see â¦ d drill, but again the year is not known. It was sometime in the 2nd century BC. Camillo Torello made the first seed drill in Europe. He received a patent for it in 1566. The seed drill as we now know it was invented in 1701 by agricultural pioneer Jethro Tull (Yes, the band was named after him).