http://www.sf-hrc.org/Modules/ShowDocument.aspx?documentid=989 (via strippingwizardsonabartop)
This is a really common oppression technique. How many times in school did you hear about famous people of color? Women? Trans people? Anyone in the QUILTBAG+ category? Disabled people? It gives the illusion the only people who contributed to our society was able bodied straight, white, cis men. Even when we did learn about people who did have disabilities or were in the QUILTBAG+ community that fact was left out of the education. Also, a lot of the scientific achievements we learned about was based on achievements that women or other oppressed groups made while someone else took the credit.
This is why it’s so important that we expand our curriculum and show the diversity that has caused our current culture, whether in science, history/social studies, math, or literature and media.