Mass assembly across the cosmic lookback time for different regions of RDAGN hosts and their controls. The solid red lines are the median SFHs of radio AGN hosts and the blue dashed lines is the median of their control samples. We also plot the average mass assembly history of galaxies with halo masses of 10¹³ M_⊙ from the Illustris simulation (Rodriguez-Gomez et al. 2016). Although the simulation relation is for the total stellar mass, it is kept fixed in all the panels for reference. The panels from left to right are the results for the regions of the whole galaxy, 0−0.5 R_e, 0.5−1 R_e, and 1−1.5 R_e, respectively. RDAGN hosts formed faster than their controls at all radii, especially in the central region. Our spectra-fitted total mass assembly history is reasonably matched by the cosmological simulation which incorporates the radio AGN feedback model.