Brainstorming: World Without Malaria

Hi everybody, some of you might remember a TL I started up about a year ago, called Empire of a Hundred Millennia, in which the extinction of the mosquito in Africa causes human civilization to begin early, along the Congo river. I'm planning to tentatively start the thread up again, but I'm planning on doing it in a slightly different style (basically, I'm going to do it as transcripts from TTL Discovery Channel programs).

Since totally rewriting human history is a slightly ambitious undertaking, I was wondering what you all think could be the consequences of malaria no longer being an issue in Africa. Important to note, though, is that malaria will still exist in other tropical environments, and the tsetse fly is still an issue.

At this point, I want to brainstorm pretty fundamental questions, like:

  • Would the absence of malaria potentially cause civilization to develop early, through higher population levels?
  • What time periods would be the most interesting for this to happen in? The Last Glacial Maximum, where most of the African jungle was grasslands and savannah, and the world geography was radically different; or at a closer time period where the Sahara was verdant and arable?
  • What would happen to Last Glacial Maximum civilizations as the ice caps began their natural retreat, and sea levels began to dramatically rise?
  • Could other human species survive in such a timeline?

I'm not asking you guys to do my work for me, but this is such a broad topic that I'd like to hear as many opinions as possible before rushing in headlong, like I did last time.
 
People living in the tropics now faces more constant military threat from tribes further north, because one of the most important natural barrier for the northerners has just gone. It's not "southerners with resistance to malaria" versus "northerners without resistance" any more.

Worse case scenario, we may see tropical population completely replaced by people with lighter skin colours.
 
People living in the tropics now faces more constant military threat from tribes further north, because one of the most important natural barrier for the northerners has just gone. It's not "southerners with resistance to malaria" versus "northerners without resistance" any more.

Worse case scenario, we may see tropical population completely replaced by people with lighter skin colours.

I'm not talking about this happening during human history, it would be happening long before any recorded events, maybe before Homo sapiens leaves Africa at all.
 
People living in the tropics now faces more constant military threat from tribes further north, because one of the most important natural barrier for the northerners has just gone. It's not "southerners with resistance to malaria" versus "northerners without resistance" any more.
People living furthur north would also have to contend with threats from the south.

Also, Sickle cell trait & Anemia won't confer an evolutionary advantage. Which means healthier Africans overall.

Worse case scenario, we may see tropical population completely replaced by people with lighter skin colours.

Who would slowly evolve a darker skin color to deal with (more intense) sunlight.

STATEMENTS ABOVE PRESUME MALARIA IS NOT REPLACED OR TRANSMITTED VIA OTHER METHODS/MEDIA.

With regards to malaria not existing at all, i'm fairly sure a different disease would replace it.
 
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