Sources

http://sks.sirs.com/cgi-bin/hst-article-display?id=SPL2870-0-2767&artno=0000064119&type=ART&shfilter=U&key=hip-hop%20dance%20origins&title=Influence%20of%20Hip-Hop%20Resonates%20Worldwide&res=Y&ren=Y&gov=Y&lnk=N&ic=N

http://sks.sirs.com/cgi-bin/hst-article-display?id=SPL2870-0-2767&artno=0000263993&type=ART&shfilter=U&key=modern%20dance%20origins&title=Dance&res=Y&ren=Y&gov=Y&lnk=N&ic=N