'First Americans' may be Johnnies-come-lately By MIKE TONER The Atlanta Journal-Constitution Published on: 08/20/04 Human history is being written —and rewritten — a shovelful at a time on a shaded hillside along the Savannah River. Each summer Al Goodyear's team of archaeologists digs deeper into the riverbank in South Carolina's Allendale County. Each summer the story of the first Americans, the primitive hunters who first populated the continent, grows longer. And more complex. And more controversial. David Tulis/AJC (ENLARGE) Archaeologist Al Goodyear holds a hand-made 'microblade,' one of the hundreds of artifacts unearthed during his team's seven years of excavations...