Long before mechanical clocks or watches existed, Black Ancient Egyptians deeply melanated Nubian innovators from the heart of Africa created one of humanity’s earliest scientific tools: the sundial. Around 1500 BCE, they mastered the movement of the sun and invented a solar-powered timekeeper that divided the day into 12 hours of sunlight and 12 hours of night. Using a simple stick or stone pillar called a gnomon, these African scientists tracked the shifting shadows to mark time with precision