The Golden Rule is the rule for peace, prosperity, and happiness upon the earth, or any populated planet in the universe. I believe that the Golden Rule of acting towards others as you wish others to act towards you came into vogue before the last Golden Age, because it becoming a way for people ushered in the period, which is also known as the Age of Truth and Virtue. It happened many thousands of years ago upon the earth, and truthfully, it will happen again because of the circularity of things.
We have recently exited the Kaliyuga, the Age of Vice and Discord, and entered the second of the four ages. Many say that we remain in the Dark Age of Kaliyuga, and I am not going to argue with them. I can see the many problems upon the earth, and regardless, the Holy Message of Heaven is to be kind to others, and until that happens, the earth will remain a dangerous place.
Hear is a verse from the Veda about treating others as family.
Abundant blessings stream from the highest region for a field of life below. You have a cart for carrying to enjoy, and to give as the Keeper of the Field, to be gracious and treat all living beings as family.