For context, the post I'm referring to is a map of Africa with subsaharia Africa in deep green, Sudan in light green and north Africa was white or some other color. The poster was claiming nothing had ever been invented in the green zone. My comment was gonna be this:
Antiseptics before Europeans.
Iron Smelting Not the first to discover it, but recent evidence show it was invented independently.
Some modern Archtecture taking inspiration from Sudano-Sahelian features such as a roof shape favoring natural ventilation. And since I just transitioned to recent inventions, there's the Cardio Pad, invented in Cameroon, to help diagnose cardiovascular disease.
The same thing happened to me when I was young. Once or twice, I asked a chain of questions that sounded an awful lot like sealioning. I've not been called a fascist more than twice, but it fucking hurts so it sticks with you.
I'm better now. Both less ignorant and very slightly more understanding of how I come across.