National Oklahoma City Bombing Commemoration Day on April 19th honors the memory of those killed in the Oklahoma City bombing on April 19, 1995. The Oklahoma City bombing was a domestic terrorist bomb attack on the Alfred P. Murrah Federal Building in downtown Oklahoma City. It remained the most destructive act of terrorism on American soil until the September 11, 2001, attacks. The blast in Oklahoma City claimed the lives of 168 people, including 19 children under the age of 6, and injured more than 680 people. (http://www.history.com/topics/oklahoma-city-bombing)
The day serves as a day of remembrance for those who perished and for those who were injured. If you would like to learn more about this awful day in Oklahoma, you can visit the Oklahoma City National Memorial and Museum website.
The day also honors all those who served and volunteered as part of the emergency response. Throughout the devastating event, emergency response and humanitarian aid flooded in from around the country. Donations of medical supplies, gear, food, water, and equipment supported the rescue and recovery efforts.