Over the past two decades, the celebration has departed from Peachtree Street and split into two competing operations: the Atlanta Caribbean Carnival, which has taken place at Turner Field, Morris Brown College, Auburn Avenue, Old Fourth Ward Park, and, more recently, Central Park; and the Atlanta-DeKalb Carnival, which started in Conyers then moved to Decatur and, now, Stonecrest. At first glance, the split might seem to mirror the sprawl of the Caribbean community throughout the metro…