Kurban Bayrami commemorates Prophet Abraham’s near-sacrifice of his son Ismail(Ishmael). In the story, God orders Abraham to take his son up to Mount Moriah and sacrifice him. Abraham takes takes his son up to mountain and lays him down. But at the last moment God stop Abraham, congratulates him on his faithfulness and order him to sacrifice instead a ram tangled in a nearby bush, which Abraham does. .
Also; KURBAN BAYRAMI is an important affirmation of one of the key tenets of ISLAM, shared social responsibility. Families who can afford to sacrifice an animal(mostly a ram or goat) will do so and there is a complex code stipulating how the carcass should be distributed amongst friends, family and charitable concerns.