Banneker's interest in mathematics began at an early age when he used his knowledge to build a clock that struck hourly.
Later in life he took a strong interest in anstronomy, and was able to perform complex calculations that predicted solar and lunar eclipses. He kept his information in a Number of journals that also included many advanced mathematical calculations.
Benjamin was taught to read by his white grandmother, Molly, and for a short time attended a small Quaker school.
Banneker was self-educated, His early exploits included constructing a wooden clock in his early twenties.
Banneker's talents and intelligence eventually came to the attention of the Ellicott brothers
.In 1791 Banneker teamed up with Major Andrew Ellicott, an American surveyor, to map out a new national capital.