Iranian languagesThe Iranian languages, also called Iranic languages, are a branch of the Indo-Iranian languages in the Indo-European language family that are spoken natively by the Iranian peoples, predominantly in the Iranian Plateau. The Iranian languages are grouped in three stages: Old Iranian (until 400 BCE), Middle Iranian (400 BCE – 900 CE) and New Iranian (since 900 CE). The two directly-attested Old Iranian languages are Old Persian (from the Achaemenid Empire) and Old Avestan (the language of the Avesta).
AlborzThe Alborz ( البرز) range, also spelled as Alburz, Elburz or Elborz, is a mountain range in northern Iran that stretches from the border of Azerbaijan along the western and entire southern coast of the Caspian Sea and finally runs northeast and merges into the smaller Aladagh Mountains and borders in the northeast on the parallel mountain ridge Kopet Dag in the northern parts of Khorasan. All these mountains are part of the much larger Alpide belt. This mountain range is divided into the Western, Central, and Eastern Alborz Mountains.
Caspian SeaThe Caspian Sea is the world's largest inland body of water, often described as the world's largest lake or a full-fledged sea. An endorheic basin, it lies between Europe and Asia: east of the Caucasus, west of the broad steppe of Central Asia, south of the fertile plains of Southern Russia in Eastern Europe, and north of the mountainous Iranian Plateau of West Asia. It covers a surface area of (excluding the highly saline lagoon of Garabogazköl to its east), an area approximately equal to that of Japan, with a volume of .
AzerbaijanisAzerbaijanis (ˌæzərbaɪˈdʒæni,_-ɑːni; Azərbaycanlılar, آذربایجانلیلار), Azeris (Azərilər, آذریلر), or Azerbaijani Turks (Azərbaycan Türkləri, آذربایجان تۆرکلری) are a Turkic ethnic group living mainly in the Azerbaijan region of northwestern Iran and the Republic of Azerbaijan. They are predominantly Shia Muslims. They comprise the largest ethnic group in the Republic of Azerbaijan and the second-largest ethnic group in neighboring Iran and Georgia.
Ziyarid dynastyThe Ziyarid dynasty (زیاریان) was an Iranian dynasty of Gilaki origin that ruled Tabaristan from 931 to 1090 during the Iranian Intermezzo period. The empire rose to prominence during the leadership of Mardavij. After his death, his brother Vushmgir and his Samanid allies led the dynasty in wrestling for control over territory against the Buyids in the early- to mid-10th century. When Vushmgir died, his sons Bisutun and Qabus fought for influence. Qabus would eventually outlive his brother and ruled the kingdom.
PersiansThe Persians (ˈpɜrʒənz or ˈpɜrʃənz ) are an Iranian ethnic group who comprise over half of the population of Iran. They share a common cultural system and are native speakers of the Persian language as well as of the languages that are closely related to Persian. The ancient Persians were originally an ancient Iranian people who had migrated to the region of Persis (corresponding to the modern-day Iranian province of Fars) by the 9th century BCE.