On the 15th of November, women work for free on the European average!
The reason for this is the gender pay gap which causes women to work roughly 1.5 months more to earn the same money as men in comparable positions. That equals on average 13% less salary per hour.
RISE took the initiative to make people aware and inform them about this imbalance. Also when Leiden University tackled this problem, many female employees still experienced less pay for the same work.