12:30 p.m.: Kosher Café East program, “Keep Your Memory Sharp”; Beth El Synagogue, 50 Maple Stream Road, East Windsor.
5 to 7:30 p.m.: Opening reception of “Mercer County Artists 2011” and Awards Ceremony; MCCC Gallery, Communication Building, Mercer’s West Windsor Campus, 1200 Old Trenton Road.
7 p.m.: Onsen For All’s Meditation with Kerry Kay class; 4451 Route 27, Princeton.
11 a.m. to 5 p.m.: Winter Princeton Farmers’ Market; Princeton Public Library community room.
5 to 7 p.m.: Opening reception of an exhibit of paintings by Mel Leipzig; Rider University Art Gallery, Bart Luedeke Center, 2083 Lawrenceville Road.
5:30 to 7:30 p.m.: Mercer Regional Chamber of Commerce Evening Networking Event and Business Card Exchange; Allegra, 2850 US Highway 1, Lawrenceville.
5:45 p.m.: International Association of Administrative Professionals, Mercer Chapter, hosts “Dealing with Change in the Workplace”; Tessara Restaurant, 812 Route 33, Hamilton.
6:30 p.m.: D&R Greenway Land Trust invites the public to “Butterflies, Their Beauty and Peril”, Rachael Winfree Program; One Preservation Place, Princeton.
8 p.m.: Adaskin String Trio, Works by Beethoven, Martinu, and Dohnanyi; Richardson Auditorium, Alexander Hall, Princeton University.
8 p.m.: State Theatre presents A Chorus Line; 15 Livingston Avenue, New Brunswick.
10 a.m. to 2 p.m.: Hunterdon County Rug Artisans Guild hosts monthly meeting; Administration Building in the Hunterdon County Complex, Route 12.
Noon: Princeton Senior Resource Center’s Brown Bag Discussion, “Osteoporosis: the Silent Crippler”; Suzanne Patterson Building, 45 Stockton Street.
1:30 to 3:30 p.m.: Mercer County Park Commission Nature Program, “Just a Hike”; meet at Baldpate Mountain, Pleasant Valley parking lot.
3:14 p.m.: Pi Day Princeton 2011 begins, Geek Freak Weekend through Monday, March 14; Princeton.
4 to 5 p.m.: Curator’s Tour of Einstein at Home, in celebration of Einstein’s Birthday and Princeton Pi Day Celebration; Historical Society of Princeton.
8 p.m.: State Theatre presents “Tango Buenos Aires: Fire and Passion of Tango”; State Theatre, 15 Livingston Avenue, New Brunswick.
9 a.m. to 2 p.m.: White Elephant Special Rummage Sale; 905 Herrontown Road, Princeton.
1 p.m.: Hamilton Township’s makeover of the 26th Annual Saint Patrick’s Day Parade; starting in front of the Nottingham Firehouse.
1 to 3 p.m.: Princeton Academy of Martial Arts celebrates its 24 Year Anniversary with an Open House; 14 Farber Road, Princeton.
2 p.m.: Harlem Globetrotters 2011 World Tour; Sun National Bank Center, Trenton. Also at 7 p.m.
4:30 to 6 p.m.: YWCA Princeton “No Sock” Sock Hop on Geek Freak Weekend; YWCA Princeton, 59 Paul Robeson Place, Princeton.
7:30 p.m.: Picasso at the Lapin Agile; Arts Council of Princeton.
8 p.m.: West Windsor Arts Center presents Mark Bodino, Classical Guitar & Contemporary Vocals; West Windsor Arts Center, 952 Alexander Road, Princeton Junction.
8:30 to 11:30 p.m.: Central Jersey Dance Society presents Ballroom Blitz dance; Unitarian Universalist Church, 50 Cherry Hill Road.
1:30 to 3:30 p.m.: Free beginner lesson in Argentine Tango; Plainsboro Public Library, 9 Van Doren Street.
3 p.m.: Friends of the Princeton University Library host “Conversations with Curators and Conservators”; Firestone Library, Princeton University.
3 p.m.: Westminster Conservatory presents a showcase including Community Ensembles and Piano Concerto Competition Winners; Richardson Auditorium, Alexander Hall, Princeton University.
Recycling
7 p.m.: Monthly Noodle Talk; Princeton Public Library.
7:30 p.m.: The Princeton Adult School presents Second Chance Cinema, “Wild Grass”; Friend Center Auditorium, Computer Science Building, Princeton University.
10 to 11:30 a.m.: Stony Brook-Millstone Watershed Association hosts “Ready or Not for Preschoolers”; Buttinger Nature Center, 31 Titus Mill Road, Hopewell.
7 to 9 p.m.: Opening reception for an Art Exhibition by Elina Lorenz; Triumph Brewing Company, 138 Nassau Street. Show runs through May.
8:30 to 10 a.m.: Watershed Morning Ramble; Buttinger Nature Center, 31 Titus Mill Road, Hopewell Township.
1 to 6 p.m.: 2011 Mercer County Economic Summit “Making Connections”; The Conference Center at Mercer County Community College, 1200 Old Trenton Road, West Windsor.
6:45 p.m.: Entrepreneur and space traveler Greg Olsen speaks on “From Entrepreneur to Spaceman”; Princeton Public Library.
4 to 5:30 p.m.: Stony Brook-Millstone Watershed Association’s event, “Barking up the RIGHT tree for School Age children”; Buttinger Nature Center, 31 Titus Mill Road, Hopewell Township.
8 p.m.: Michael Flatley’s Lord of the Dance; Patriots Theatre at the War Memorial.
8 p.m.: Improv Comedy Troupe “Far and In Between”; Paul Robeson Center for the Arts.
10 a.m. to 4 p.m.: American Red Cross Blood Drive; 100 Metroplex Plaza, LSNJ Conference Room, Edison.
7:30 p.m.: Mary McCaslin performs at the Princeton Folk Music Society Concert Series; Christ Congregation Church, 50 Walnut Lane, Princeton.
7:30 p.m.: New Jersey Symphony Orchestra celebrates “Best of Spanish Flair” In Style; War Memorial, Trenton.
7:30 p.m.: Performance by The Hamilton College Choir; Nassau Presbyterian Church, 61 Nassau Street.
10:30 a.m. to Noon: Stony Brook-Millstone Watershed Association’s event, “Let’s Fly a Kite”; Buttinger Nature Center, 31 Titus Mill Road, Hopewell Township.
11 a.m.: The Very Hungry Caterpillar Storytime and Craft; Princeton Barnes & Noble.
12:30 p.m.: Fruit Tree Pruning Demonstration with owner Gary Mount; Terhune Orchards, 330 Cold Soil Road, Princeton.
3 p.m.: Kingston Presbyterian Church hosts an authentic Victorian Tea; Kingston Presbyterian Church.
7 p.m.: Arts Council of Princeton presents Sarah Donner’s Indie Music Night; Paul Robeson Center for the Arts, 102 Witherspoon Street.
7:30 p.m.: Reock & Roll Revue with the classic rock opera “Quadrophenia”; Kelsey Theatre, Mercer County Community College.
9 p.m. to Midnight: Argentine Tango Social Dance; Suzanne Patterson Center, Monument Drive, Princeton.
1 to 3 p.m.: Mercer County Park Commission Nature Program, “Wildlife Guess Who”; Mercer County Wildlife Center, Route 29.
3 p.m.: Princeton Writers’ Block performs comic sketches and one-acts by David Ives; Princeton Public Library.
1 p.m.: The Women’s College Club of Princeton meeting; All Saints’ Church, 16 All Saints’ Road, Princeton.
4:30 p.m.: Princeton University Department of Music presents “Composition Colloquium”; Woolworth Center Room, Princeton University.
8 p.m.: Washington Crossing Audubon Society meeting, “Wild Utah: America’s Red Rock Wilderness”; Stainton Hall on the Pennington School’s campus, Delaware Avenue.
9 a.m. to 2 p.m.: Blood Donor Program; Merwick Care & Rehab facility.
9 to 10:30 a.m.: Mercer County Park Commission Nature Program, “Trail Trek”; meet at Mercer County Park, Tennis Center parking lot.
8 p.m.: Composers Ensemble at Princeton; Taplin Auditorium in Fine Hall, Princeton University.
4 p.m.: American Repertory Ballet’s On Pointe, “Dancing Your Way Into College”; Princeton Ballet School’s studios, 301 N. Harrison Street, Princeton.
6:30 to 8 p.m.: Opening reception of “Feedback”, an exhibition of paintings by Steve Budington; The Mariboe Gallery at Peddie School, Hightstown.