The Medes (/midz/) (from Old Persian Māda-) were an ancient Iranian people who lived in Iran in an area known as Media and spoke a northwestern Iranian language referred to as the Median language. Their arrival to the region is associated with the first wave of Iranian tribes in the late second millennium BCE (the Bronze Age collapse) through the beginning of the first millennium BCE.
In the 7th century BCE a unified Median state was formed which together with Babylonia, Lydia, and Egypt became one of the four major powers of the ancient Near East. An alliance with the Babylonians helped the Medes to capture Nineveh in 612 BCE which resulted in the collapse of the Neo-Assyrian Empire. The Medes were subsequently able to establish their Median kingdom (with Ecbatana as their royal centre) beyond their original homeland (central-western Iran) and had eventually a territory stretching roughly from northeastern Iran to the Halys River in Anatolia. The Median kingdom was conquered in 550 BCE by Cyrus the Great who established the next Iranian dynasty—the Achaemenid Empire.
The Kurdish people, or Kurds (Kurdish: کورد Kurd), are an Iranic people native to the Middle East, mostly inhabiting a region known as Kurdistan, which includes adjacent parts of Iran, Iraq, Syria, and Turkey. They speak the Kurdish language, which is a member of the Iranian branch of Indo-European languages. The Kurds number about 30 million, the majority living in the Middle East, with significant Kurdish diaspora communities in the cities of western Turkey, in Armenia, Georgia, Israel, Azerbaijan, Russia, Lebanon and, in recent decades, some European countries and the United States. The Kurds are an indigenous ethnic minority in countries where the Kurdistan region is located, although they have enjoyed partial autonomy in Iraqi Kurdistan since 1991. An irredentist movement pushes for the creation of a Kurdish nation state.
The exact origins of the name, "Kurd", are unclear. Reynolds believes that the term Kurd is most likely related to the ancient term Qardu. The common root of Kurd and Qardu is first mentioned in a Sumerian tablet from the third millennium B.C. as the "land of Kar-da." Qardu is etymologically related to the Assyrian term Urartu corresponding to Ararat. According to Asatrian, the most reasonable explanation of this ethnonym is its possible connections with the Cyrtii (Cyrtaei)
Cyrus II of Persia (Old Persian: Kuruš (c. 600 BC or 576 BC–530 BC), commonly known as Cyrus the Great, also known as Cyrus the Elder, was the founder of the Achaemenid Empire. Under his rule, the empire embraced all the previous civilized states of the ancient Near East, expanded vastly and eventually conquered most of Southwest Asia and much of Central Asia, parts of Europe and the Caucasus. From the Mediterranean sea and Hellespont in the west to the Indus River in the east, Cyrus the Great created the largest empire the world had yet seen. He also pronounced one of the first historically important declarations of human rights via the Cyrus Cylinder sometime between 539-530 BCE.
The reign of Cyrus the Great lasted between 29 and 31 years. Cyrus built his empire by conquering first the Median Empire, then the Lydian Empire and eventually the Neo-Babylonian Empire. Either before or after Babylon, he led an expedition into central Asia, which resulted in major campaigns that were described as having brought "into subjection every nation without exception". Cyrus did not venture into Egypt, as he himself died in battle, fighting the Massagetae along the Syr Darya in December 530 BC. He was succeeded by his son, Cambyses II, who managed to add to the empire by conquering Egypt, Nubia, and Cyrenaica during his short rule.