Read it through once

Mississippi steamboating was born about 1812; at the end of thirty years, it had grown to mighty proportions; and in less than thirty more, it was dead! A strangely short life for so majestic a creature. Of course it is not absolutely dead, neither is a crippled octogenarian who could once jump twenty-two feet on level ground; but as contrasted with what it was in its prime vigor, Mississippi steamboating may be called dead.