Wednesday

5 p.m.: “Robert Oppenheimer: A Life Inside the Center” presented by Professor Ray Monk of the University of Southampton; Wolfensohn Hall, Institute for Advanced Study.

Thursday

11 a.m. to 4 p.m.: Summer opening of the weekly Princeton Farmers Market featuring fruit, cheeses, honey, flowers, coffee, crepes, breads, jams, and more; Hinds Plaza.

Friday

8 a.m. to 1 p.m.: Free fitness classes and open house at Sphericality, a new fitness studio in Skillman offering BarreAmped, pilates, yoga, zumba and deep stretching. A formal ribbon cutting ceremony will take place on Saturday, May 18 at 11:30 a.m., along with more free classes; Montgomery Shopping Center, Route 206, Skillman.

6 to 10 p.m.: Parents Night Out! at the West Windsor Arts Center. Parents can drop-off their children (ages 6 to 12) for a fun night of storytelling, drama improvisation, games, and art activities. The evening includes snacks, drinks, and a pizza dinner. The cost is $30 per child ($27 for WWAC members) and $22.50 per sibling ($20 for WWAC members); 952 Alexander Road, Princeton Junction.

Saturday

7:30 a.m.: 5K Run and Dog Walk at Mercer County Park’s East Area in West Windsor. The event is presented by Attitudes in Reverse, which supports those battling mental illness. Nobel Prize winner and mathematician John Nash and his wife Alicia Nash will be in attendance.

8 p.m.: VOICES presents “Time Passing, Time Standing Still” with the Princeton Area Homeschool Choir. Over 100 singers and instrumentalists will perform classical and modern pieces, in addition to three new pieces commissioned in honor of VOICES’ 25th Anniversary; St. Paul’s Roman Catholic Church, 214 Nassau Street, Princeton.

Sunday

9 a.m. to 1 p.m.: Princeton Elks Lodge annual Spring Flea Market; 354 Route 518, Skillman.

Noon to 3:30 p.m.: The Encore Princeton Bridal Showcase and Gown Sale by Bouche Productions; Chauncey Conference Center and Laurie House, 660 Rosedale Road.

Monday

Recycling

Noon: The Women’s College Club of Princeton will meet for a luncheon and presentation by J. Robert Hillier, founder and president of Hillier Architecture based in Princeton. Hillier’s presentation will cover the first two or three years of his professional practice. The public is welcome to attend. For further information, call (609) 430-4332.

Tuesday

4 to 6 p.m.: Members of the Princeton High School Chess Club provide free instruction to interested participants; Princeton Public Library.

Wednesday

1 to 3 p.m.: Meeting of the Jewish Bereavement Group, open to any Jewish adult who has lost a loved within the past 18 months. Facilitated by Beverly Rubman. Pre-registration is required. To register, call (609) 987-8100; Adath Israel Congregation, 1958 Lawrenceville Road, Lawrenceville.

Go to Calendar

The Princeton Farmers Market opens on Hinds Plaza, Thursday, May 16, from 11 a.m. to 4 p.m.

Mayor Liz Lempert will hold a Meet the Mayor session, Thursday, May 16, 5 to 7 p.m. in Conference Room A of Witherspoon Hall, 400 Witherspoon Street. For more, call (609) 924-5704.

Riverside School’s “Healthy Children, Healthy Planet Day,” green community event with food, plant sale, garden tours, and children’s crafts will be held on Saturday, May 18, 10 a.m. to 2 p.m. Suggested $5 donation benefits school garden programs.

Volunteers are needed at Marquand Park to help with clean up, Sunday, May 19, noon to 4:30 p.m. If interested, call (609) 921-2627 and leave a message.

The Princeton Police Department will conduct a Click It or Ticket: Seat Belt Enforcement and Education Campaign from May 20 to June 2. Law enforcement officers from the Princeton Police Department will be cracking down on unbuckled motorists and passengers.

A Neighborhood Meeting, Tuesday, May 21, will focus on the installation of a new 8 inch water main along Snowden Lane between Nassau Street and Franklin Avenue. For more, visit www.princetonnj.gov/engineering.

Princeton Public Library Board of Trustees will meet in public session, Tuesday, May 21, at 5:30 p.m. in the Library’s second floor conference room.

Princeton Public Schools Board of Education will hold a special open meeting, Wednesday, May 22, at 6:30 p.m., in the Valley Road Administration Building. Candidates for the unexpired term (May 31 to December 31) of retiring board member Dorothy Bedford will be interviewed.

The Spirit of Princeton invites the community to the annual Memorial Day Parade and Dedication Ceremony on Saturday, May 25 for the 10 a.m. parade on Nassau Street, and 11 a.m. dedication ceremony at Princeton Monument Hall (former Borough Hall). Rain or shine. Pancake Breakfast from 8 a.m. to noon, Palmer Square Green. For more, call: (609) 430-0144 or visit: www.spiritofprinceton.org.

Alexander Road Update: A temporary traffic signal is being installed at the intersection of College Road and University Place for use over the next year when construction detours are in effect for Princeton University’s Arts and Transit Project. Delays may be expected during the next two weeks. The Arts and Transit Project includes a new Wawa convenience store and new Dinky train station as well as three new campus arts buildings and renovation of the rail station buildings for a café and restaurant. The traffic signal, which will only be activated when detours are in effect for construction will be in place from May through February 2014. For more, visit: www.princeton.edu/artsandtransit.