Before revision: Motivated by map labeling, we study the problem in which ]  we are given a collection of n disks D_1, , D_n in the plane that grow at possibly different speeds.
After revision: Motivated by map labeling, we study the problem in which ] we are given a collection of n disks D_1, , D_n in the plane . Initially, all disks have radius 0, and they grow at constant, but possibly different, speeds.