Engage in conversations and hands-on learning in the field of artificial intelligence and machine learning. 6:30-7:30pm, Calvert Library, Prince Frederick, RSVP: CalvertLibrary.info.

Historian Glenn Campbell profiles four Maryland patriots who signed the Declaration. 7:30pm, $15, RSVP for Zoom link: annapolis.org.

Hear a story and make a craft (ages 3-8). 10-11am, Belair Mansion, Bowie, free: 301-809-3089.

Preschoolers (ages 3-4) become a pirate for the day and look for hidden treasure (also June 30 for ages 5-7). 10-11am, Historic St. Mary’s City, $10 w/discounts, RSVP: [email protected].

Think you’ve got what it takes to be on the Beach Patrol? Learn about water safety and water rescue techniques in fun drills with the lifeguards; all participants must know how to swim (ages 7-12). 2-4pm, Sandy Point State Park, Annapolis, $4 admission fee, RSVP: 410-974-2149.

Children (K-5th grade) build confidence by reading aloud with teens in a safe and welcoming space, stuffed animals welcome, too. 6:30-7:30pm, Calvert Library, Prince Frederick, RSVP: CalvertLibrary.info.

Preschoolers (ages 3-4) become a pirate for the day and look for hidden treasure (also June 30 for ages 5-7). 10-11am, Historic St. Mary’s City, $10 w/discounts, RSVP: [email protected].

Preschoolers (ages 3-5yrs) join in story time and a carryout craft on the theme of Chesapeake ABC. 10:15am & 11:15am, Calvert Marine Museum, Solomons, $9 w/discounts, RSVP: calvertmarinemuseum.com.

3-7pm, Deale Library, Facebook: @SoCoFarmersMarketatDealesLibrary

Children (K-5th grade) build confidence by reading aloud with teens in a safe and welcoming space, stuffed animals welcome, too. 6:30-7:30pm, Solomons Branch, Calvert Library, RSVP: CalvertLibrary.info.

The John Frase Project performs; bring lawn seating; no coolers. 7-8:30pm, Annapolis Maritime Museum, Eastport, $10 donation: amaritime.org.