Clothing is often an extension of a person’s personality. But when it comes to dressing for work, there are a lot of nuanced rules—both documented and unspoken. And for women especially, those guidelines can get pretty complicated. Thankfully, workplace policy and norms have loosened their reins on mandated stockings, heels, and other provisions since women first entered the workforce. To incite more progress in the realm of unfair workplace dress codes, the first step is to know your rights. Check out the infographic below to learn how women’s workplace attire has evolved over the last century and what to do if you feel the dress code at your company is discriminatory.