Guilan is one of Iran's three Northern provinces adjacent to the Caspian Sea. It's conventionally referred to as "North" by many Iranian citizens, especially those who live in giant, polluted cities such as Tehran where people hardly have the chance to behold the marvelous beauty of rain, forest and nightingales.
The archeological excavations reveal that the history of habitation in Guilan dates back to the age of Medes, an ancient Iranian tribe who lived in the northwestern parts of the present day Iran some 3700 years ago. Medes first resided in these parts in the late second millennium BC during the Bronze Age collapse.
Archaeologists believe the inhabitants of Caspian Sea's littoral districts were historically skillful in hunting animals such as cows, deer, swine and gazelles. The splendid artifacts and remnants of handicrafts found during the excavations of Guilan signify that the early Guilanis were also dexterous and competent in arts.
Renowned historians such as Henry Field and Arthur Keith believe the civilization of Caspian Sea's southern coastline dates back to 5,000 years; however, some scholars have gone so far to assert the civilization of Guilan is more than 7,000 years old and has affected the neighboring civilizations such as that of Assyrians. According to Arnold Wilson and Henry Filed, the early inhabitants of the Iranian Plateau were the people who resided in what is now considered to be the province of Guilan.