 So, long before Rosa Parks refused to give up her seat on a bus, long before Martin Luther King Jr. gave his I Have a Dream speech, there was Edna Griffin, who fought back when she was refused service at a Des Moines drugstore soda fountain, on this date, in 1948. And that's Iowa Almanac for July 7th. Follow us on Twitter, at Iowa Almanac. I'm Jeff Stein, on News Talk 1540, KXEL.