Named after Hakim Abulkasim Firdousi - Tajik/Persian poet (c. 940-1020/30).
Firdousi is a crater on Mercury. It has a diameter of 98 kilometers. Firdousi is named for the Iranian poet Hakim Ferdowsi, who lived from 940 to 1020. (wikipedia entry)
A crater is a circular depression likely created by an impact event. On Mercury they are named after deceased artists, musicians, painters, and authors who have made outstanding or fundamental contributions to their field and have been recognized as art historically significant figures for more than 50 years.
Image Source. Marker locations are approximate and may not always appear to align with image on map.