Passover begins

ConservationQuest: 9 a.m.-9 p.m. Westport Public Library. Exhibits from the Stepping Stones Museum for Children.

"Treasures Revealed!" and "Inside Story:" 10 a.m.-4 p.m. Westport Historical Society, 25 Avery Place. Exhibits featuring artifacts from the institution's archives and collection on Westport history, some of which date from 18th century.

Parks and Recreation Commission: 7:30 p.m. Town Hall.

Green Task Force: 7:30 p.m. Town Hall.