Star formation history of the in situ stellar populations of each galaxy in our sample. Light-blue histograms represent the star formation history of the in situ stellar particles located within 4 R_h, while violet histograms represent that of the in situ stellar halo. Arrows represent the time at which the galaxies underwent merger events, and only merger events that satisfy that the maximum total mass reached by the satellite was $\frac{1}{100}$ times the M₂₀₀ of the main galaxy are being shown. The arrows are colour-coded according to the maximum total mass reached by the satellites. The galaxies are plotted in order of decreasing stellar mass.