The question of why is there disparity and when did it start is a question that I have asked myself many times and have asked others for their perspectives. I’m happy to find that “Guns, Germs and Steel” has thoroughly investigated the roots of inequality. One theory is that agriculture is one advantage that some groups of people came into. The reasons for adapting agriculture are fascinating. They included climate change which forced human groups into creative solutions, geographic setting and ability to access water and other needed elements, the ability to domesticate livestock and more.