Great kourosh (syrus):

He was the son of Mandana (The daughter of Astyage, the last king of Media) & Cambyses (A commander of Astyages army). When he grew up found out that the people don’t like Media government .So he went to Pars, make a big army and attack to the capitol of Media (Hegmatane) & destroy that chain in 550 B.C.

This period is one of the big Iranian glories because after he became a king all of areas in Asia & Europe (From Mediterranean to Soka s people that lived in North-East of Iran & from Caspian sea to the Saudi Arabia peninsula) were a part of Iranian civilization.

syrus was the king of this big country but he never forgot justice. & His 'Cyrus Cylinder' is a commemoration for our children and us.

Herodotus, the Greek historian of the mid-fourth century BC, best describes the legend of Cyrus and the myths surrounding his birth. According to him, Astyages was Cyrus' maternal grandfather, who dreamt that his daughter Mandane produced so much water that it overran his city and the whole of Asia. When the holy men (magi) heard of the king's dream, they warned him of its consequences.

As a result, her father gave Mandana in marriage to a Persian called Cambyses who, although of noble descent, was considered by Astyages to be "much lower than a Mede of middle estate". Mandana and Cambyses were not married more than a year when Astyages once again had a dream; this time he saw a vine growing from inside Mandana's womb, which overshadowed the whole of Asia. The magi immediately saw a bad omen and told the king that Mandana's son would usurp his throne. The king sent for his pregnant daughter and kept her under tight guard until the child was born. Royal instructions were given to Harpagus, a Median nobleman and confidant of the king, that he should kill and dispose of the newly born child. But Harpagus decided not to kill the baby himself.

Instead, he called for a royal herdsman and ordered him to carry out the king's command, adding that he would be severely punished if the child was allowed to live. However, the herdsman's own wife had given birth to a still-born child during her husband's absence, and she convinced him to keep the royal baby and bring it up as their own. They then presented Harpagus with the corpse of their still-born child, claiming that it was the prince.

Cyrus soon developed into an outstanding young boy, overshadowing his friends and showing royal qualities of leadership. One day, during a game with other children, Cyrus was chosen to play king. Promptly assuming this role, he punished the son of a distinguished Mede who refused to take orders from him. The father of the badly beaten boy complained to King Astyages, who in turn called for Cyrus in order to punish him. When asked why he behaved in such a savage manner, Cyrus defended his action by explaining that, because he was playing the role of king, he had every reason to punish someone who did not obey his command. Astyages knew immediately that these were not the words of a herdsman's son and realized that the boy was his own grandson, the son of Mandana. Later the story was confirmed by the herdsman, albeit with great reluctance. Astyages then punished Harpagus for his disobedience by serving him the cooked remains of his own son's body at a royal dinner. On the advice of the magi, the king allowed Cyrus to return to Persia to his real parents.

Harpagus vowed to avenge his son's death and encouraged Cyrus to seize his grandfather's throne. Herodotus described how Harpagus wrote his plan on a piece of paper and inserted it into the belly of a slain hare, which had not yet been skinned. The skin was sewn up and the hare given to a trusted servant who, acting as a hunter, traveled to Persia and presented it to Cyrus, telling him to cut it open. After reading Harpagus' letter, Cyrus began to play with the idea of seizing power from Astyages. As part of a careful plan, he persuaded a number of the Persian tribes to side with him to throw off the yoke of Astyages and the Medes. Cyrus succeeded in overthrowing his grandfather and became the ruler of the united Medes and Persians....

This fascinating account by Herodotus is still regarded by some as a reliable source on Cyrus' birth and coming to power, although it has a strong mythological flavor.

Syrus "[His troops] he collected, and against Cyrus, king of Anshan... he marched. As for Astyages, his troops revolted against him and he was seized (and) delivered to Cyrus. Cyrus (marched) to Ecbatana, the royal city. The silver, gold, goods and substance of Ecbatana he took to the land of Anshan..."conquered Ecbatana in 550 B.c. & Annals of Nabonidus described his story: "[His troops] he collected, and against Cyrus, king of Anshan,... he marched. As for Astyages, his troops revolted against him and he was seized (and) delivered to Cyrus. Cyrus (marched) to Ecbatana, the royal city. The silver, gold, goods and substance of Ecbatana he took to the land of Anshan..."

In his Cyrus Cylinder have written: "I am Cyrus, king of the world, great king, mighty king, king of Babylon, king of the land of Sumer and Akkad, king of the four quarters, son of Cambyses, ...king of Anshan, grandson of Cyrus, ...descendant of Teispes, ...progeny of an unending royal line, whose rule Bel and Nabu cherish, whose kingship they desire for their hearts' pleasures. 

When I, well-disposed, entered Babylon, I established the seat of government in the royal palace amidst jubilation and rejoicing. Marduk, the great God, caused the big-hearted inhabitants of Babylon to come to me. I sought daily to worship him. My numerous troops moved about undisturbed in the midst of Babylon. I did not allow any to terrorize the land of Sumer and Akkad. I kept in view the needs of Babylon and all its sanctuaries to promote their well being. The citizens of Babylon ...their dilapidated dwellings I restored. I put an end to their misfortunes... 

...the cities of Ashur and Susa, Agade, Eshnuna, the cities of Zamban, Meurnu, Der, as far as the region of the land of Gutium, the holy cities beyond the Tigris whose sanctuaries had been in ruins over a long period, the gods whose abode is in the midst of them, I returned to the places and housed them in lasting abodes. I gathered together all their inhabitants and restored to them.

He was the first king who named ((Great)). He was died in 530 B.C & was buried in Pasargadae (A very fantastic place). There was written these sentences (that Alexander read those to his army when arrived to Syrus tomb):

"O, man, whoever thou art and whenever thou comes, for I know that thou wilt come, I am Cryus, and I won for the Persians their empire. Do not, therefore, begrudge me this little earth which covers my body