We have changed how we collect and accept calendar information. Readers must now submit all items through our website. Go to events.contracostatimes.com, and click on "submit your event." You'll have to register at this point, then enter your event, but you don't have to pay. Submitting your event in this way will ensure it is part of our easily searchable online database as well as a candidate for space in our publications.

North Hills Community Association. The North Hills Community Association meets to discuss "Taking Control: Building Safety into our Lives." 10 to 11:30 a.m. March 22. College Preparatory School, auditorium, 6100 Broadway, Oakland.

Healthcare Insurance Enrollment Event. Affordable Healthcare Enrollment. The March 31 deadline for enrolling in Covered California is almost here. Qualified Covered California Certified Enrollers and Educators will be on hand to answer your questions and help you enroll in the program. 1:30 p.m. March 22. Lakeview Branch Library, 550 El Embarcadero, Oakland. 510-238-7344, www.oaklandlibrary.org/Branches/lak.html.

Diversity Film Series "Linsanity." Free showing of a documentary film about the rise of Jeremy Lin, an Asian-American basketball player who caused an entire nation of fans to go "linsane." 3 to 4:30 p.m. March 22. The New Parkway Theater, 474 24th St., Oakland. Free. 510-835-9227, diversityfilmseries.org.


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Oakland Jazz Choir. The Oakland Jazz Choir kicks off its 22nd year with "Rhythms for Life and Love," a new concert of eclectic music. 8 p.m. March 22. Piedmont Piano Co., 1728 San Pablo Ave., Oakland. $20. www.oaklandjazzchoir.com

Fundraiser Brunch. Burbank Preschool Center's first fundraiser brunch features brunch, beverages, music, raffle and more. Adults only. 11 a.m. to 1:30 p.m. March 23. Piedmont Community Hall, 711 Highland Ave., Oakland. $40. 510-729-7771, www.eventbrite.com.

Open Cockpit Day. OAM holds the first open cockpit day of the year. Also on hand, a special showing of "The Hudson Car Club" vehicles and the creator of the jet engine Turbinophone, Kunal Dovedy. Noon to 4 p.m. March 23. Oakland Aviation Museum, 8252 Earhart Road, Oakland. $5-$10. 510-638-7100, www.oaklandaviationmuseum.org.

Library Branch Talk. Discover the interesting history of the Dimond Branch of the Oakland library system at a talk with Kathleen DiGiovanni of the Oakland History Room. 7 p.m. March 25. Dimond Branch, Oakland Public Library, 3565 Fruitvale Ave., Oakland. 510-482-7810, oaklandlibrary.org.

Music with Code with The Sudo Room. Teens can learn to make music with computer programming and math. Basic computer skills and basic arithmetic skills needed. Bring your own laptop or reserve one. 5 p.m. March 25. Cesar E. Chavez Public Library, 3301 E. 12th St., Oakland. RSVP requested. 510-535-5620, www.oaklandlibrary.org.

Plant Exchange. Want an instant new garden? Bring your plants and pick up new ones. All types and sizes of healthy plants welcome, from small cuttings up to full size. Noon to 4 p.m. March 29. First Presbyterian Church, 2619 Broadway, Oakland. 510-866-8482, theplantexchange.com.

Free Computer Tutoring. Brush up on your computer basics at free computer tutoring. 1 to 3 p.m. Saturdays. 4 to 6 p.m. Tuesdays. Rockridge Branch Library. 5366 College Ave., Oakland. 510-597-5017, www.oaklandlibrary.org.

Peralta Hacienda Kids Club. Kids from 5 to 15 can play and experience Oakland's original rancho through traditional arts and hands-on activities: Make adobe bricks and corn husk dolls, learn about native plants and make seed balls, traipse through the creek area and participate in other nature-based tours. 2:30 to 5 p.m. Saturdays. Peralta Hacienda Historical Park, 2465 34th Ave., Oakland. Free. 510-532-9142, www.peraltahacienda.org.