what are some of the acheivements of the Han Dynasty?

The Han Dynasty brought China to new heights militarily, politically, and socially. It created irrigation and water conservation projects to increase farming. Another major achievement of the Han Dynasty was the invention of books and paper. About education and teaching, it was ruling was the installation of a state academy which was to educate and even train individual for state services. Besides, under the Han dynasty, China produced significant works of medicine, history, politics and philosophy.