The first written script in human history, called hieroglyphics, was invented by the ancient Egyptians around 3200 BCE.
Africans were the first to use iron in the world, which they began using as early as 500 BCE.
The concept of zero in mathematics was invented in ancient Africa, specifically in the empire of Mali around the 13th century.
The windmill, which is now used to generate electricity, was invented in ancient Egypt around 200 BCE.
The first mechanical device used to measure time, the water clock, was invented in ancient Egypt around 1500 BCE.
The West African nation of Ghana invented a system of silent communication using drums called "talking drums" that could transmit messages across long distances.
The modern technique of cataract surgery, which involves using a small incision and a needle to remove a cataract, was invented by the ancient Egyptians around 2500 BCE.
The technique of using natural dyes to color fabrics was invented in ancient Egypt around 4000 BCE.
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