We have changed how we collect and accept calendar information. Readers must now submit all items through our website. Go to events.contracostatimes.com, click on "submit your event," register at this point and enter your event. You do not 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.

Lego Mania at the Library. Kids can design, build and explore with hundreds of Legos available from the Lego Club. 3 to 5 p.m. June 6. Piedmont Avenue Branch Library, 80 Echo Ave., Oakland. Free. 510-597-5011, oaklandlibrary.org.

Older Americans Art Exhibit. The city of Oakland Parks and Recreation's Malonga Casquelourd Center for the Arts presents "Bids Eat Broccoli; Older Americans Art Exhibit," featuring work of folks 55 years and older, there will be a demos, artwork sale, literary features and open mic. 2 to 4 p.m. and 6:45 to 9:15 p.m. June 6. Malonga Casquelourd Center for the Arts, 1428 Alice St., Oakland. 510-238-7217, malongacasquelourdcenter@gmail.com.


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Learn to Row Day. Lake Merritt Rowing Club throws open its door for a free day that includes introduction to rowing, indoor and on the water; an open house: boathouse tours; and more. Must be at least 15 years of age. Minors must be accompanied by a parent/legal guardian. Wear workout clothes that aren't too loose, tennis shoes and socks, hat and sunglasses, and bring a water bottle. 10 a.m. June 7. Lake Merritt Rowing Club, 1520 Lakeside Dr., Oakland www.rowlakemerritt.org.

Beginning Genealogy. If you're not sure how to start research your family history, or if you're a pro and just want the most up-to-date information, a free introduction to genealogy class can help. 1 to 3 p.m. June 7. California Genealogical Society and Library, 2201 Broadway, Oakland. 510-663-1358, www.californiaancestors.org.

DIY Stamp Making. Artists from the Oakland-based Rock Paper Scissors Collective host this workshop for teens interested in learning how to carve a stamp out of their own design, as well as use simple easy stamp print methods. All materials provided. 2 to 3:30 p.m. June 11. Free. Oakland Public Library, Rockridge Branch, 5366 Collage Ave., Oakland. 510-597-5017, oaklandlibrary.org.

Library Photos Book Launch. A book launch for Robert Dawson's "The Public Library: A Photographic Essay," a celebration of public libraries, followed by Q&A and signing. 6 to 7:30 p.m. June 12. Oakland Public Library, Main Branch, 125 14th St., Oakland. Free. 212-995-9620, oaklandlibrary.org.

PHS 30th Reunion. Advance ticket purchase is a must for Piedmont High School's class of 1984 30th reunion celebration. 6 to 11 p.m. June 21. Piedmont Community Hall, 711 Highland Ave., Piedmont. $100. lpwillerup@ft.newyorklife.com or keithbarlow@sbcglobal.net.