Red Cross blood drive Download Red Cross Blood Donor app, visit redcrossblood.org or call 1 (800) RED CROSS for an appointment or more information.

Limerick writing contest at Caribou Public Library, 5:30-6:30 p.m. in Piper Reading Room. Share your limericks and enjoy refreshments. Prizes for all ages. Everyone welcome.

Bridge at the Putnam House Senior Center, 48 Court St., 10 a.m.-2 p.m. Lunch available.

Mother Goose Story Time, 0-2 years, at Caribou Public Library, 10:30-11 a.m. Stories, songs and finger plays.

Discover Girl Scouts, for girls in grades K-3 and parents/caregivers, 6 p.m. at Van Buren Community Center.