The earliest reference to the city is on Elamite clay tablets dated to 2000 BCE, found in June 1970, while digging to make a kiln for a brick factory in the south western corner of the city. The tablets written in ancient Elamite name a city called Tiraziš. Phonetically, this is interpreted as /tiračis/ or /ćiračis/. This name became Old Persian /širājiš/; through regular sound change comes the modern Persian name Shirāz. These photos are open edition.