From the continent...or do you mean how did the continent come to bear that name?
If you mean how did
Africa come to be a person's name, click the link. It is simply from the continent.
-Seda*

"WOOHOO! Hey I have to tell y'all something. I went to Sea World for the first time yesterday. It rocked! I got to kiss a whale! And it kissed me back!"-Kelly Clarkson