The friends who got food poisoning all ate at the same
restaurant for dinner, while the friends who did not get food
poisoning did not. Food poisoning is basically contaminated food. The main cause of food poisoning is bacteria. It is estimated that there are over 250 bacteria that can cause food poisoning. Correlation is the act of something have a causative relation with an effect.
One of the main things that Africa had was a self-government and town meetings, where people would meet to make their society better. They also started the majority rules in politics. Americans borrowed these ideas and implemented them into our government. :)