Fifty years ago, the White House was the site of an unusual party.
It was a celebration of the Emancipation Proclamation's centennial, held on Abraham Lincoln's birthday, and many of the guests were descendants of the people Lincoln's historic document freed.
But noticeably absent was the Rev. Martin Luther King Jr. The civil rights leader had declined the invitation after earlier conversations with President Kennedy about segregation had yielded few results.
Chelsea Clinton makes cards with 8-year-old Addison Rose on the National Mall on Saturday as part of the National Day of Service events. Clinton, daughter of former President Bill Clinton and Secretary of State Hillary Clinton, is the honorary chair of the National Day of Service.
This weekend, hundreds of thousands of people — including President Obama and his family — are participating in volunteer activities around the country. Saturday's National Day of Service kicks off the president's second inauguration and honors the Rev. Martin Luther King Jr.'s birthday.
As budgets tighten and personal schedules fill, nonprofits are looking for new ways to attract extra helpers, and organizers for the national event hope it will lead to a permanent boost in volunteerism.