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Henry Ford Museum member Mark Schneider looks at the bus in which civil-rights icon Rosa Parks refused to give up her seat in 1955, Friday, Jan. 31, 2003, in Dearborn, Mich. The museum unveiled the bus Friday for 300 of its members and will open the display to all museum goers on Saturday, the first day of Black History Month. The museum purchased the bus in October 2001 for $492,000 after it was found in a field in Alabama. (AP Photo/John F. Martin)

Keith Davis, right, and his son, Keith Jr., examine the bus in which Rosa Parks refused to give up her seat in 1955 on Friday, Jan. 31, 2003, at the museum in Dearborn, Mich. The bus was unveiled for 300 museum members Friday and will be shown to the public starting Saturday, Feb. 1, the first day of Black History Month. The museum purchased the bus in October 2001 for $492,000 after it was found in a field in Alabama. (AP Photo/John F. Martin)

Harriet Ross Tubman's great great nieces and oldest living descendants, from left, Valery Ross Manokey, 76, of Cambridge, Md.; Peggy Ross, 60, of Cambridge, Md.; Delphine Slaughter, 62, of Hurlock, Md., adopted; Barbara Ross Stanley, 70, of Columbus, Ohio; and Bernice Ross Carney, 74, of Denton, Md.; gather around with a wax likeness of the renowned abolitionist and conductor of the Underground Railroad, at the Presidents Gallery by Madame Tussauds in Washington during the unveiling of the wax figure in celebration of Black History Month, Tuesday, February 7, 2012. (AP Photo/Manuel Balce Ceneta)

George W. Porter, left, and Michael Harrison, right, members of the George S. "Spanky" Roberts Chapter of the Tuskegee Airmen, Inc., wait to be introduced to the state Senate during ceremonies honoring the Tuskegee Airmen during Black History Month at the Capitol in Sacramento, Calif., Tuesday, Feb. 21, 2012. Both houses of the Legislature honored the Tuskegee Airmen who were part of an Army Air Corps program to train African Americans to fly and provide support for combat aircraft during World War II. (AP Photo/Rich Pedroncelli)

Secretary of State Condoleezza Rice, center, poses for a photo with members of the Duke Ellington School of the Arts Show Choir following their performance at the State Department in Washington, Friday, Feb. 22, 2008, during an event celebrating Black History Month 2008. (AP Photos/Susan Walsh)

Denver singer Hazel Miller joins local pre-school and kindergarten children at the Blair Caldwell Library on Friday, Feb. 10, 2012 to help celebrate Black History Month by reading several books and singing a few songs. Clifford the Big Red Dog and Winnie the Pooh were also there to entertain the kids. All the kids are told to take a bow after singing a song. Kathryn Scott Osler, The Denver Post

Nyimah Bryant, left, and Khalil Mohammed, 4, from Real Kids Preschool listen as Denver singer Hazel Miller joins local pre-school and kindergarten children at the Blair Caldwell Library on Friday, Feb. 10, 2012 to help celebrate Black History Month by reading several books and singing a few songs. Clifford the Big Red Dog and Winnie the Pooh were also there to entertain the kids. Kathryn Scott Osler, The Denver Post

After the reading, Students from Real Kids Preschool from left to right, Sedik Mote, 4, Dawenise Burks, 3, and Nyimah Bryant, 2, each get to pick out their own book to take home. Denver singer Hazel Miller joins local pre-school and kindergarten children at the Blair Caldwell Library on Friday, Feb. 10, 2012 to help celebrate Black History Month by reading several books and singing a few songs. Clifford the Big Red Dog and Winnie the Pooh were also there to entertain the kids. Kathryn Scott Osler, The Denver Post

From left, co-chair of the National Museum of African American History and Culture Council Richard Parsons, Smithsonian Board of Regents Patty Stonesifer, former first lady Laura Bush, Smithsonian Institution Secretary Wayne Clough, Smithsonian Museum Director Lonnie Bunch, Smithsonian Undersecretary for History, Art and Culture Richard Kurin, Smithsonian Board of Regents Chair France Cordova, and co-chair of the National Museum of African American History and Culture Council Linda Johnson Rice, lift shovels during the groundbreaking ceremony for the Smithsonian National Museum of African American History and Culture in Washington, Wednesday, Feb. 22, 2012. (AP Photo/Susan Walsh)

The Rev. Jesse Jackson, right, shakes hands with Arkansas student Cody Bassham, far left, after Jackson accepted a t-shirt from the Young Democrats student organization in Fayetteville, Ark., Tuesday, Feb. 10, 2004. Jackson is scheduled to give a talk Tuesday night on the campus as part of the university's Black History Month celebration. Looking on are students Alejandro Aviles, center left, and Brittany Starr. (AP Photo/April L. Brown)

Cleveland Browns head coach Romeo Crennel gestures during a program celebrating African American History month at the State Department on Friday, Feb. 18, 2005 in Washington. (AP Photo/Evan Vucci)

Dr. Emily Cissy Houston sings at a ceremony celebrating the first day of black history month at the Schomburg Center for Research in Black Culture Saturday, Feb. 1, 2003 in New York. The ceremony sponsored by McDonalds is part of a month long tribute to notable African-Americans. (AP Photo/Frank Franklin II)

Muhammad Ali, right, stops to give a hug to fan Martha Thomas as he arrives for the Butterfly Ball, a tribute in his honor, coinciding with Black History Month, Saturday Feb. 26, 2005, in Atlanta. (AP Photo/John Amis)

Florida Lt. Gov. Toni Jennings, left, congratulates Florida Marlins' Dontrelle Willis as she presents him the Points of Light Award during baseball spring training in Jupiter, Fla., Thursday, Feb. 23, 2006. Last fall, Willis donated equipment and uniforms to more than 40 sandlot youth baseball players in Little Havana. During Black History Month, the Points of Light Awards recognize outstanding African Americans in Florida dedicated to giving back to their communities. (AP Photo/Gerry Broome)

Members of the 1966 Texas Western College mens basketball team gather outside the West Wing of the White House after celebrations of their victory in the NCAA men's basketball national championship of 40 years ago as part of Black History Month observances in Washington, Thursday, Feb. 23, 2006. They changed collegiate athletics forever by starting an all-black lineup for the first time in the NCAA playoffs and upsetting the favored University of Kentucky to win the national title. Their exploits are dramatized in a new film called "Glory Road". (AP Photo/J. Scott Applewhite)

Artist and retired educator Eric Strong, from Lubbock Texas, gives a presentation on African American storytelling Friday, Feb.15, 2008, at Booker T. Washington Elementary in Hobbs, N.M., in celebration of Black History Month. (AP Photo/Daily News-Sun, Kimberly Ryan)

Steve Harvey, comedian and TV personality, center, signs copies of his latest book, "Straight Talk, No Chaser" after speaking to a group of fans about his key to success, during Kmart's Black History Month program and the launch of their 2011 Share the Word Community program at Kmart in Memphis, Tenn on Monday, February 14, 2011. (Mike Wintroath/AP Images for Sears Holdings)

James Keown, right, plays the part of sheriff Willy Kennard as the Colorado Railroad Museum in Golden hosts a Black History Month event, Black on Track: African American Connections and Stories. Members of the James P. Beckworth Mountain Club, historical reenactors from Denver, gave visitors an experience of the African American connections and stories that contributed to both the railroad and cultural history of Colorado. Kathryn Scott Osler, The Denver Post

Deanna Lowman, right, plays the part of Sarah Elizabeth Lowman on board an 1880's narrow gage passenger coach as the Colorado Railroad Museum in Golden hosts a Black History Month event, Black on Track: African American Connections and Stories. Members of the James P. Beckworth Mountain Club, historical reenactors from Denver, gave visitors an experience of the African American connections and stories that contributed to both the railroad and cultural history of Colorado. Kathryn Scott Osler, The Denver Post

Members of the James P. Beckworth Mountain Club, historical reenactors from Denver, perform at the Colorado Railroad Museum in Golden as it hosts a Black History Month event, Black on Track: African American Connections and Stories. From left to right are Stephan Griffin, Deanna Lowman (background), Lynne Lawlor, and Sid Wilson. The reenactors gave visitors an experience of the African American connections and stories that contributed to both the railroad and cultural history of Colorado. Kathryn Scott Osler, The Denver Post

Seton Hall University School of Law professor Bernard K. Freamon stands near a photograph of civil rights leader Oliver Randolph, as he speaks to a gathering about the Anti-segregation Clause in the New Jersey Constitution during a Black History Month event, Thursday, Feb. 21, 2008, at Princeton University. (AP Photo/Mel Evans)

Mass. Gov. Deval Patrick gives the keynote address at Yale, in New Haven, Conn on Friday Feb. 13, 2009. Hosted by Pierson College and Afro-American Cultural Center for Black History Month. (AP Photo/Douglas Healey)

Yolanda Adams performs at a Black History Month event celebrating the music of the Civil Rights Movement hosted by President Barack Obama in the East Room of the White House in Washington, Tuesday, Feb. 9, 2010. (AP Photo/Charles Dharapak)

President Barack Obama and first lady Michelle Obama listen to a performance during the White House Music Series saluting Blues Music in recognition of Black History Month, Tuesday, Feb. 21, 2012, in the East Room of the White House in Washington. On stage from left to right are Troy ìTrombone Shortyî Andrews, Jeff Beck, Derek Trucks, Gary Clark, Jr., B.B. King, Buddy Guy, Warren Haynes, Shemekia Copeland, Susan Tedeschi and Keb Mo. (AP Photo/Pablo Martinez Monsivais)

Troy "Trombone Shorty" Andrews, performs during the White House Music Series saluting Blues Music in recognition of Black History Month, Tuesday, Feb. 21, 2012, in the East Room of the White House in Washington. (AP Photo/Pablo Martinez Monsivais)

B.B. King, left, performs during the White House Music Series saluting Blues Music in recognition of Black History Month, Tuesday, Feb. 21, 2012, in the East Room of the White House in Washington. (AP Photo/Pablo Martinez Monsivais)

Rep. John Lewis, D-Ga., right, speaks as Vice President Joe Biden listens during the 3rd Annual Black History Month Reception at the Vice President's Residence at the Naval Observatory, Monday, Feb. 27, 2012, in Washington. (AP Photo/Carolyn Kaster)

First lady Michelle Obama meets with students from schools across the London borough of Islington, at the White House in Washington, Thursday, Feb. 18, 2010, who were rewarded with a trip to the United States sponsored by the U.S. Embassy in London for winning an Islington Black History Month essay competition. (AP Photo/Gerald Herbert)

A wax figure of First Lady Michelle Obama is unveiled at Madame Tussauds in New York to kick off Black History month Tuesday, Jan. 26, 2010. (AP Photo/Frank Franklin II)

Elizinel Martinez, 9, of P.S. 192 touches a wax figure of President Barack Obama during the initial viewing of a wax figure of first lady Michelle Obama at Madame Tussauds to kick off Black History month Tuesday, Jan. 26, 2010 in New York. Students from PS 192 are among the first to see the wax figure and continue their lesson on black history by going on Madame Tussaud's Black History Month scavenger hunt, featuring over 20 wax figures of prominent African American icons. The scavenger hunt will be available free to attraction guests through the end of February. (AP Photo/Frank Franklin II)

Alison Hemmings, 14, of Valley Stream, N.Y., takes her picture with a wax figure of Martin Luther King Jr., as she visits an exhibit celebrating Dr. King and the upcoming Black History Month at Madame Tussaud's Thursday, Jan. 12, 2006 in New York. Dozens of area middle school students visited the exhibit which includes wax figures of Martin Luther King, Jr., Malcolm X, Nelson Mandela, Rosa Parks and nine other prominent African Americans as well as a "Freedom Wall" on which the students wrote messages honoring their heroes. Martin Luther King Jr. day is being celebrated Monday, Jan. 16. 2006.(AP Photo/Jason DeCrow)

Cynthya Reyes, 14, of Manhattan, signs the Freedom Wall as she visits an exhibit celebrating Martin Luther King, Jr. and the upcoming Black History Month at Madame Tussaud's Thursday, Jan. 12, 2006 in New York. Dozens of area middle school students visited the exhibit which included wax figures of Martin Luther King, Jr., Malcolm X, Nelson Mandela, Rosa Parks and nine other prominent African Americans as well as the Freedom Wall on which the students wrote messages honoring their heroes. (AP Photo/Jason DeCrow)

Larae Lindsay, 10, center, helps Tiffany Morgan, 11, left, paint her African mask during a fifth grade class project at St. Charles Borromeo school in the Harlem section of New York, Thursday, Feb. 1, 1996. Students of the school plastered, molded, and painted death and dance masks to celebrate the first day of black history month. (AP Photo/Wally Santana)

First lady Hillary Rodham Clinton reacts to a Cleveland Tri-School Learning Academy student Friday, Feb. 14, 1997, in Washington, while sitting with students Myesha Lowe, right, and Paul Ragan. Clinton and retired Gen. Julius Becton, CEO of DC public schools, discussed Black History Month during their visit to the school. (AP Photo/Karin Cooper)

President Jimmy Carter draws smiles from black leaders in the Cabinet Room of the White House in Washington, Jan. 15, 1980, as he declares February "Black History Month". (AP Photo/Harvey Georges)