The golden rule is a Christian value
No it isnt. almost every single culture has a form of this rule many of which date back previous to Christianity.
Here is a list of the Golden rule being said by different religious/philosophical views. many of these come before christianity.
please give credit were credit is due. Christianity did in no way create todays moral code.
Judaism: What is hateful to you, do not to your fellow man. That is the entire law; all the rest is commentary.
Talmud, Shabbat 31a - thirteenth century B.C.
Confucianism: Surely it is the maxim of loving kindness: Do not do unto others what you would not have them do unto you.
Analects 15:23 - sixth century B.C.
Buddhism: Hurt not others in ways that you yourself would find hurtful.
Udana-Varga 5:18 - fifth century B.C.
Jainism: In happiness and suffering, in joy and grief, we should regard all creatures as we regard our own self, and should therefore refrain inflicting on others such injury as would appear undesirable to us if inflicted upon ourselves"
fifth century B.C.
Zoroastrianism: That nature alone is good which refrains from doing unto another whatsoever is not good for itself.
Dadistan-I-dinik 94:5 - fifth century B.C.
Taoism: Regard your neighbor's gain as your own gain and your neighbor's loss as your own loss.
T'ai Shang Kan Ying P'ien - fourth century B.C.
Plato: May I do to others as I would that they should do to me.
fourth century B.C.
Brahmanism (Hinduism): This is the sum of duty: Do naught unto others which would cause you pain if done to you.
Mahabharata 5:1517 - third century B.C.
Hillel: What is hateful to yourself, do not do to your fellow man."
first century B.C.
Christianity: So in everything, do to others what you would have them do to you, for this sums up the Law and the Prophets.
Matthew 7:12 - first century A.D.
Islam: No one of you is a believer until he desires for his brother that which he desires for himself.
Sunnah - seventh century A.D.
Sikhism: Treat others as you would be treated yourself.
sixteenth century A.D.
Native American: Respect for all life is the foundation.
Kaianrekowa, (Great Law of Peace), sixteenth century A.D.
Unitarianism: We affirm and promote respect for the interdependent of all existence of which we are a part.
eighteenth century A.D
Baha'i: Blessed is he who preferreth his brother before himself.
Baha'u'llah, Tablets of Baha'u'llah,71, nineteenth century A.D.
Native American: All things are our relatives; what we do to everything, we do to ourselves. All is really One.
Black Elk, Holy Man of the Oglala Sioux, nineteenth century A.D.
Humanist: Don't do things you wouldn't want to have done to you.
twentieth century A.D.
Wiccan: An it harm none, do what ye will.
Wiccan Rede - twentieth century A.D.