On September 12, 1962, Dr. Martin Luther King, Jr. delivered a speech in Ë®¹ûÅÉAV½â˵ City to commemorate the 100th anniversary of the Preliminary Emancipation Proclamation. The Ë®¹ûÅÉAV½â˵ State Museum has the only known audio recording of this speech. For the first time, the public can listen to the speech in an online exhibition on the .