Niggers never contributed to anything really important, except for progress towards the fall of humanity.
Martin Luther King Jr. was perhaps one of the most dangerous niggers to ever live. He ended segregation, and began the destruction of the United States of America.
--Besides crime and being general apes, this is about all they can do. And they're not real good at it either.
Oh... and BTW, if you read the constitution, at the beginning it says:
"We the People...."
Niggers aren't people, nor are they cimpanzees.
Niggers are the lowest form of living thing to ever exist.