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Aggregation No. 1Clean Comedy Showcase from 6:30 to 8:30 p.m. Friday at the Dante Club, 3 Dante Terrace off Craigie Street, in the Spring Hill neighborhood near Porter Square in Somerville. Tickets are $10 for adults, or $5 for students and children.

Comedians David McLaughlin and Joe Medoff host a show in which all the jokes are guaranteed to be free of swearing and crude content matter. This premiere date includes the comics Mike Bent; Kathe Farris; Dan Goldberg; Sam Ike; Zach Jones; Will Martin; and Jere Pilapil. Information is here.

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072116i-Space Pirates

Aggregation No. 2“Space Pirates” children’s play from 7 to 8 p.m. Friday and 10:30 to 11:30 a.m. Saturday at The Center for Arts at the Armory, 191 Highland Ave., Somerville. Donations will be taken at the door.

This fast-moving play for kids – featured at last year’s Children’s Musical Theatre Festival in New York – has a group of classmates getting accidentally beamed into outer space by aliens, then caught up in a bit of a battle as space pirates suddenly attack. The 50-minute play, with music, lyrics and book by Denver Casado, Betina Hershey and Gwynne Watkins, brings the thrill of space adventure to the stage along with a message about not taking your friends for granted (and not picking on them). Information is here.

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Aggregation No. 3Salsa Sampling and Latin Beats Dance Party from 7 to 10 p.m. Friday at Brattle Plaza, Harvard Square. Free.

There’s salsa music and dancing (with tunes from DJ D. Martinez and dance instruction for newcomers from Matei), chips and salsas from restaurants such as Border Café, Boston Burger Co. and El Jefe’s Taqueria and speciality non-alcoholic “mocktails” from Beat Brasserie at this free night under the stars in Harvard Square. Information is here.

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072116i-Kids Fun & Great Jazz

Aggregation No. 4Kids Fun & Great Jazz from 3 to 7 p.m. Saturday at Magazine Beach, at the river end of Magazine Street in the Cambridgeport neighborhood. Free.

Children’s games from Knucklebones, kite flying, a fire engine, rowing lessons and a toddler dance party will all be provided, along with 5 to 7 p.m. concert by Albino Mbie & Band. Mbie, of Mozambique, built his first guitar at 16 from a five-liter can of oil, scrap wood and strings made out of electrical cords, made his way to the Berklee College of Music and was recently nominated by Radio France International as an artist to watch. Supplement your picnic with treats from an ice cream food truck, and buy kite and string for $5 if necessary at this Cambridgeport Neighborhood Association event sponsored by the Sanofi Foundation of North America, the Massachusetts Institute of Technology and the Charles River Conservancy. Information is here.

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Aggregation No. 5Haiti & Brazil hit the ’Ville Festival from 1 to 4 p.m. Sunday in Union Square Plaza, 90 Union Square, Somerville. Free.

This festival of song, dance and art celebrating the area’s diverse population (bumped from October) features traditional foods such as Haitian Fritay and Brazilian Churrasco from Haitian restaurant Blessings and others, along with dance demonstrations, poetry, Samba music and drumming.