  In this paper, we prove the global existence of strong solutions for the 3D
incompressible inhomogeneous viscoelastic system. We do not assume the "initial
state" assumption and the "div-curl" structure inspired by the works [59,61].
It is a key to transform the original system into a suitable dissipative system
by introducing a new effective tensor, which is useful to establish a series of
energy estimates with appropriate time weights.
