Star formation histories (upper panel) and relative stellar mass growth (lower panel) of three regions at different galactocentric distances for the NGC 7793 disc. Different line types represent different regions along the disc, dotted red line for 1 − 2 kpc, dashed blue line for 4 − 5 kpc and solid black line for 7 − 8 kpc. Both the SFRs and stellar masses are normalised by their present-day values. The horizontal cyan dash-dotted line in the lower panel shows when each component achieves 50% of its final value.