Inscription on plate: dedicates the State House corner stone on the 20th anniversary of American Independence! #wcvb pic.twitter.com/8ym3afj4AV Officials opened a time capsule in Boston Tuesday, more than 200 years after Paul Revere, Samuel Adams and William Scollay buried it there. "Tonight is a new chapter in a story that began in 1795," Malcolm Rogers, director of Boston's Museum of Fine Arts, said Tuesday before the capsule was opened.