A grassroots initiative to transform the anniversary of September 11 into a day of national unity and community service was launched in 2002 by two founders seeking to honor the event through collective action. The organization behind the effort was established with the goal of encouraging acts of kindness and solidarity across the country. Inspired by personal loss—one of the founders lost a brother in the attacks—the movement aims to shift the focus from remembrance alone to tangible efforts that strengthen communities. This year’s observance continues the tradition of turning a day of reflection into one of shared purpose.

The idea to commemorate the anniversary by making Sept. 11 a day of unity and doing good deeds was that of David Paine and Jay Winuk, who founded the organization 9/11 Day in 2002. Jay's brother Glenn ...