MEHs (red) and SFHs (green, insight) for the whole sample of quiescent galaxies, divided into mass bins. In each panel a box indicating the number of galaxies, N, and the mass bin considered is shown. The solid red and green curves are the median MEH and SFH, respectively, calculated at each temporal step. The red and green shaded regions represent the 16th and 84th percentiles. The MEH curves show, by construction, a fictitious raise within the first 0.5 Gyr; for this reason, we shade this temporal region in gray. The black dotted and dashed lines are τ₇₅ and τ₉₀, respectively, corresponding to the time at which the median SFHs reach the 75% and 90% of their mass.