8:30 a.m. Lower Manhattan Development Corp. Chairman Avi Schick will present a progress report on the redevelopment of lower Manhattan at the Marriott World Financial Center Hotel, 85 West Street.
8:30 a.m. The Antenna Audio and WTC Tribute Center will preview a Sept. 11 commemoration audio tour at the WTC Tribute Center, 120 Liberty Street.
9 a.m. A restoration of Keith Haring’s “Crack is Wack” mural will be revealed at Harlem River Park, 128th Street and Second Avenue.
10 a.m. A public meeting of the city’s Campaign Finance Board will be held at the OATH Conference Room, 40 Rector Street.
10 a.m. Airport and airline workers will discuss Sept. 11 experiences with aviation students at Vaughn College, 86-01 23 Avenue, in Flushing, Queens.
10:30 a.m. Anti-hunger advocates will release a report on the city’s food stamp program at the Urban Justice Center, 123 William Street.
10:30 a.m. Members of the Amalgamated Transit Union, Local 1181, which represents school bus and access-a-ride drivers, will call on the AFL-CIO president to investigate their union for mob influence at the law offices of Levy, Ratner, 80 Eighth Avenue.
11 a.m. Rebuilding officials will present final designs for three World Trade Center towers and plans for memorial and construction activity at 7 World Trade Center, 250 Greenwich Street.
11 a.m. Manhattan borough president and NYCLU officials will release a report on military recruitment activity in public schools at the Tweed Courthouse, 52 Chambers Street.
Noon. The parks department will lay a wreath to celebrate the 250th birthday of Marquis de Lafayette at the statue in Union Square Park, Union Square East at 16th Street.
Noon. Faith and community groups will announce a candlelight vigil commemorating Sept. 11 victims at Foley Square, Lafayette and Worth streets.
4 p.m. The Columbia Teachers College will launch a new curriculum based on Spike Lee’s Hurricane Katrina documentary at the Cowin Center, Broadway and 120th Street.
6 p.m. A reception kicking off a bike ride to raise money for a sick 6-year-old British boy will be held at the Kimberly Hotel, 145 E. 50th Street.
6 p.m. A community forum on gang flags and images will be held at 1950 Third Avenue.
6 p.m. George H.W. Bush, Bill Clinton and Melinda Gates will be honored at the Save the Children benefit at Avery Fisher Hall, Damrosch Park, Columbus Avenue and West 65th Street.
7 p.m. A screening of “Saint of 9/11: The Life of Fr. Mychal Judge, Chaplain, FDNY” will be held at the NYU Cantor Film Center, 36 East Eighth Street.