PINK TAX TIMELINE
The "pink tax" is a form of gender-based price discrimination. Although the tax was not an official thing till around 2016, there were many things that were factors to the tax. Starting as early as 1945, when females would start to gather in order to stop price discrimination in all the little things back then. Still today, price iscriminationation is still an ongoing problem but is now being applied to even bigger items like dry cleaning, shampoo, etc.