CFS have been used widely since 1999. They began as a rights-based approach developed by UNICEF to guarantee children's rights to survival, development, participation and protection, especially at times of crisis or instability. UNICEF launched the first CFC during the Kosovo crisis in Albania in April 1999. Subsequently, CFS were used in the camps for the survivors of a 1999 earthquake in Turkey. They then became a common part of the humanitarian response and have since been used in Angola, Chad, Colombia, Denmark, East Timor, El Salvador, Ethiopia, Finland, Germany, Greece, India, Iran, Iraq, Iran, Jordan, Lebanon, Liberia, Mali, Russia, Occupied Palestinian Territories, Pakistan, Paraguay, Philippines, Serbia, Somalia, Spain, Syria, Tanzania, Turkey, and Uganda, among other countries.