Education
Blacks built the first universities in the world. In particular, the University of Tombouctou, also called Timbuktu, which is in Mali, was considered the oldest thriving university in the world. Students came from Europe, the Middle East, Asia and all over the world to study at Timbuktu.
Source: Timbuktuheritage.org
Astronomy
Several ancient African cultures made discoveries in astronomy. Egyptians unfathomed the movement of the sun and constellations and the cycles of the moon long before any other region of the world. The Egyptians inspired the modern calendar. There are evidence that shows they divided the year into 12 parts and developed a yearlong calendar system containing 365 ¼ days.
Source: starteachastronomy.com