Obama's date with U.S. history a mixed blessing

By Matthew Bigg - Analysis

DENVER (Reuters) - The historic nature of Barack Obama's bid for the White House inspires many Americans but it also runs the risk of turning off some voters uneasy at the prospect of having history shoved down their throats.

Obama will be named this week as the first black nominee of a major U.S. political party and, if he defeats Republican John McCain in November's election, would be the first African American president.

At 47, he is also the embodiment for many of the American Dream in which anybody can grow up to be president, including the son of a Kansas mother and an absent Kenyan father with an exotic name who spent his early years living abroad.

Many Democrats see his campaign as a step towards bridging the country's racial divide. Black Americans constitute some 12 percent of the population but lag behind in many indexes of social and economic health.

Obama's acceptance speech on Thursday falls exactly 45 years after civil rights leader Martin Luther King stood on the steps of the Lincoln Memorial in Washington during the March on Washington and delivered his "I Have a Dream" speech.

That 1963 speech has come to embody the ideals of the civil rights movement King led during the turbulent 1960s and is seen as an expression of the country's highest aspirations of equality and justice.

But the historical coincidence could also remind some white voters that they are deemed to have been on the wrong side in one of America's most divisive social struggles.

There are some people "whose experience in the civil rights movement was a loss of face and the humiliation of being seen as an immoral people and that doesn't go away," said historian Rick Perlstein.