Five hundred years before

Five hundred years before Christ some physicians of ancient India, working under the influence of the Lord Buddha, advanced the art of healing to so perfect a state that they were able to abolish surgery, although the surgery of their time was as efficient, or more so, than that of the present day. Edward Bach

It is said about

It is said about Lord Buddha sadaya-hrdaya darsita-pasu-ghatam. He saw the whole human race going to hell by this animal killing. So he appeared to teach ahimsa, nonviolence, being compassionate on the animals and human beings. In the Christian religion also, it is clearly stated, ‘Thou shall not kill’. So everywhere animal killing is restricted. In no religion the unnecessary killing of animals is allowed. But nobody is caring. The killing process is increasing, and so are the reactions. Every ten years you will find a war. These are the reactions.
A. C. Bhaktivedanta Swami Prabhupada