SFHs. The SFH of the best-fit IGIMF-R14 model adopting the parameter set in Table 1 is shown with the black line. The SFH is shown as a histogram because the smallest time step is 10 Myr. The starting time of the galactic wind is 50 Myr (cf. Fig. 5), while the SFR drops to half of its peak value at about 90 Myr, which defines the SFT. The blue dashed line is the blue dashed line in Lacchin et al. (2020, their Fig. 3), i.e., their 3BooI-IGIMF model.