Civilization grew in the beginning from the minute that we had communication - particularly communication by sea that enabled people to get inspiration and ideas from each other and to exchange basic raw materials.
Circumstances cause us to act the way we do. We should always bear this in mind before judging the actions of others. I realized this from the start during World War II.
But if we begin thinking about the world being over 100 million years old, then it`s absolutely by chance that you and I are sitting here alive today, while all the others are dead or have never been born.