Amarakosha is a Sanskrit thesaurus written by Amarasinha in verse format. He was a distinguished scholar, one among the nine "gems" (navaratna) during Vikramaditya's court (in about 380 A. D.) (Vikramaditya was originally known as Chandra Gupta II. He was a heroic king and is well known for developing an independent calendar, widely recognized in India as Vikram Samvat). These were the great writers who produced lasting works of Sanskrit literature that sparkled in the Golden Age of India. Chief of these was Kalidasa, "India's Shakespeare". See ancient period of Indian history.
The text is important enough for Sanskrit students and scholars to be presented in a separate category. This is relisted in the major works section along with Kalidasa's texts, as well as in Sanskrit dictionary links. The text is given in three parts according kaaNDas: