Mark your calendars for Tufts University's annual Community Day, where Tufts students, faculty and staff come together with community nonprofits and neighbors to celebrate. There will be live performances, children's activities, Medford and Somerville community groups and resources, research projects by university faculty, raffles, and free food and refreshments. All activities are free and open to the public and take place on the Academic Quad. Please see the Community Day webpage for more details and updates as the event draws closer.…