WTF moment

So here I am, reading another book for class....when a history tidbit annoyed the mess out of me.
(as many of them do)

in January of 1866, after the Civil War ended and the Congress was attempting to put together a workable Reconstruction (since the happy nice, friendly one that Johnson attempted to do at first ended up with Black Codes and all kinds of idiocy)... A Civil Rights Bill was introduced to define freedom and give people their rights....basically giving everyone born in the US specific rights regardless of race... BUT OH WAIT...not everyone....
not everyone born in the US
That's right...
NOT NATIVE AMERICANS!!!!
You mean the people who were here first?  Yea, they didn't get rights.... W  T  F