(Boston, Mass.) - While the nation celebrates Memorial Day on Monday, a celebration is already underway marking the 100th anniversary of the birth of  John Fitzgerald Kennedy.

Courtesy JFK Centennial

The 35th President of the United States was born on May 29th, 1917. Starting today, a yearlong celebration opens at the JFK Memorial Library and Museum in Boston to honor his life and legacy.

Courtesy JFK Centennial

To mark the centennial, the US Postal Service issued a forever stamp in February featuring a 1960 photograph of Kennedy, taken by Ted Spiegel during a campaign stop in Seattle.

US Postal Service