Benjamin Banneker was
born in Maryland on November 9, 1731.
He
is often known as the "First African American
Scientist." He built a working wooden clock that
kept accurate time and struck the hours for over 50
years. Banneker studied astronomy and he published
an almanac. "Benjamin Banneker's Almanac"
was a top seller from Pennsylvania to Virginia and
even into Kentucky from 1792 to 1797.
In 1791, Banneker helped survey the
land which is now known as Washington, D.C.
Benjamin
Banneker 
He
is often known as the "First African American
Scientist." He built a working wooden clock that
kept accurate time and struck the hours for over 50
years. Banneker studied astronomy and he published
an almanac. "Benjamin Banneker's Almanac"
was a top seller from Pennsylvania to Virginia and
even into Kentucky from 1792 to 1797.
