Qazvin is one of the most important historical cities of Iran. Its construction and prosperity have been attributed to Sassanid Dynasty. The archaeological excavations in Qazvin plain, however, date back to the 7th millennium BCE. In the Islamic Era, Qazvin was introduced as one of the country's scientific centers and its prosperity doubled. Water resources in Qazvin has created many reservoirs, Qazvin is called the city of treasure trove.
The 205-kilometer Qazvin-Rasht (northern Iran) railway line will become operational in a ceremony to be attended by President Hassan Rouhani prior to March 21, said the managing director of Iran's Construction and Development of Transportation Infrastructures Company (CDTIC) on Monday.
The Qazvin plain, in the northwest of the central Iranian plateau, has been the focus of attention ever since the first inhabitants dwelt on the Iranian plateau. The earliest settlers in the region were the Kassites.