Guns, Germs and Steel

The book teaches us about the reasons why some places developed civilisations way before others and why some never developed any civilisation at all and how this is not related to some humans being smarter or intellectually superior to others. It answers some questions I never even thought of like why Europeans conquered the Americas but the Native Americans never invaded Europe.
I understand some are bored with such ideas and want to get over the ideas of racism and cultural superiorities but unfortunately our world is still full of racism and bigotry and it's all due to ignorance. It's such books with such knowledge that opens up the eyes of blind racists and bigots.