The Assyrians are credited with a great many achievements through their timeline. They had practical inventions, like locks and keys, paved roads, use of iron, plumbing, flushing toilets, and the sexagesimal clock (the beginnings of the way we tell time today). The Assyrians also brought about the use of the first guitar, first libraries, first magnifying glass, and the first postal system.
In addition, Assyria contributed invaluable ideas to the world, such as the concept of imperial administration, "of dividing the land into territories administered by local governors who report to the central authority, the King of Assyria" ("Brief History of Assyrians"). Assyria brought high civilization to the people groups living in the empire.
Perhaps the greatest achievement credited to the Assyrians is the founding of the first university, where theology, philosophy and medicine were taught. This was the School of Nisibis. Their statutes would be used as inspiration for the first Italian university.
Literature was also an important contribution by the Assyrians, who systematically translated Greek texts into Assyrian. The subjects included religion, science, philosophy, and medicine. A great medical textbook on ophthalmology, written by Hunayn ibn-Ishaq in 950 A.D. would remain an definitive source up to 1800.