The widow of slain Civil Rights organizer Medgar Evers will deliver the invocation at President Obama's inauguration. Myrlie Evers-Williams is believed to be the first woman, and layperson other than clergy, to deliver the prayer that precedes the ceremonial oath of office, [according to The Washington Post.]( The president's inaugural planners also [announced Cuban-American Richard Blanco will be the 2013 inaugural poet. ]( The inaugural ceremony will take place on Jan. 21, Martin Luther King Jr. Day.