CNN Explains: How today's GOP has its roots in anti-slavery crusade
Tom Foreman,
CNN
Updated 10:27 PM EDT,
Sat August 25, 2012
CNN Explains: How the Republican party began
STORY HIGHLIGHTS
Republicans emerge as an anti-slavery party in 1800s
Abraham Lincoln was party's first president
GOP got name Grand Old Party from a Chicago newspaper
link-
http://www.cnn.com/2012/08/25/politics/cnn-explains-gop-party/index.html?hpt=hp_c2