The answer to this is farming.
Most deaths occur in farming because of the flying debris. Some of the survival occurs in farming too. When there is a tornado the people usually take shelter in root cellar.
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The peoples of West Africa had rich and diverse histories and cultures centuries before Europeans arrived.
Before Imperialism, Africa was a very diverse land with hundreds of languages and cultures. Societies ranged from centralized government states, to village communities, to nomadic hunter-gatherer societies.
A European author stated : "Africa had no history prior to European exploration and colonization, that there is only the history of Europeans in Africa."
This is of course a very complex question that does not have a definitive answer, but 1850s would be a good decade to start counting as "Modern". This was a decade of the telegraph and Darwin's The Origin of Species.
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Where is the chart? Then I can answer