A broad international movement exists to promote youth voice, born from earlier youth service and youth rights movements.[15] The United Nations Convention on the Rights of the Child was the first international mechanism to stipulate the systemic engagement of youth voice. Specific aims are stated in Articles 5 and 12 that clearly acknowledge the youth have a voice, that youth voice is constantly changing, and that all areas of our society are morally responsible for engaging youth voice. Annual events which center on youth voice include Global Youth Service Day and the National Service Learning Conference.