My name is Ima Relativist. I've embraced cultural relativism as I've come to appreciate the deeply cultural basis for morality. I was brought up to believe that morality is about objective facts. Just as snow is white, so also infanticide is wrong. But attitudes vary with time and place.
Morality is a cultural construct.
Just as societies create different styles of food and clothing, so too they create different moral codes. I've learned about these in my anthropology class and experienced them as an exchange student in Mexico. Consider my belief that infanticide is wrong. I was taught this as if it were an objective standard. For the ancient Romans, on the other hand, infanticide was all right.