Myrlie Evers-Williams Delivers Inaugural Prayer, Accidentally Calls Obama '45th President' (VIDEO)

Civil rights icon Myrlie Evers-Williams delivered the inaugural invocation on Monday, speaking of the enduring quest for equality and accidentally referring to Barack Obama as the "45th president" of the United States.

Obama is actually the 44th president, though he's the 43rd person to hold the job, as Grover Cleveland served as both the 22nd and the 24th president.

(Watch the video above)

More on Evers-Williams' speech, from the Associated Press:

Evers-Williams is calling on Americans to work together to build on the nation's progress in her invocation for President Barack Obama's inaugural ceremony.

The widow of slain civil rights activist Medgar Evers' message of inclusion for the inaugural ceremonies comes 50 years after her husband was gunned down in the driveway of his Mississippi home.

The inauguration falls on Martin Luther King Jr. Day.

Evers-Williams is a distinguished scholar at Alcorn State University in Lorman, Miss. She was chairwoman of the NAACP from 1995 to 1998.