Passover begins

ConservationQuest: 9 a.m.-9 p.m. Westport Public Library. Exhibits from the Stepping Stones Museum for Children. http://bit.ly/15WE5Mi

"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. http://bit.ly/10ZzTa4

Parks and Recreation Commission: 7:30 p.m. Town Hall. http://www.westportct.gov/index.aspx?page=745&recordid=4420

Green Task Force: 7:30 p.m. Town Hall. http://www.westportct.gov/index.aspx?page=745&recordid=4457