March 1st has been designated as Zero Discrimination Day.
While most countries today enact anti-discrimination laws, there are still various subtle forms of discrimination. This can happen based on gender, ethnicity, religion. social class, possible disability, etc. One example is when you are called to a job interview based on your written application but when you show up the next day, you are suddenly told that the position is filled. If this happens repeatedly, you may suspect discrimination. When at work or at school, you may be treated as having weaker abilities or you feel people shying away from you with no apparent reason. Even in the street, you can be treated as suspect just because of your skin colour or the language you speak, or both. Sooner or later this will create an inferiority complex and a questioning of self-worth.
While anti-discrimination legislation is necessary to alleviate open discrimination, the only real way of eliminating it is building a culture in which an individuals's worth is not perceived as depending on gender, ethnicity or other factors one is born with and cannot change. It is best to help building such an attitude already in childhood, by means of integrated education. The attitudes leading to discrimination can only be changed step by step, but there has been a lot of change happening during the past decades already.