Twenty-five years after the deadliest attack on US soil, Americans will pause on Friday to commemorate the nearly 3,000 people killed when hijacked planes slammed into the World Trade Center, the Pentagon and a field in Pennsylvania — and to wrestle with the legacy of September 11. Milestone anniversary to include memorial rituals – wreath-laying, flag-flying, moments of silence, vigils and readings of victims’ names – and volunteer projects Key points and original sources are listed below.

• Twenty-five years after the deadliest attack on US soil, Americans will pause on Friday to commemorate the nearly 3,000 people killed when hijacked planes slammed into the World Trade Center, the Pentagon and a field in Pennsylvania — and to wrestle with the l...S1

• Milestone anniversary to include memorial rituals – wreath-laying, flag-flying, moments of silence, vigils and readings of victims’ names – and volunteer projectsS2

• Vice President JD Vance and all former living presidents to join Mayor Zohran Mamdani at the September 11 memorialS3