Indicates wheelchair-accessible.

Indicates listening devices.

Events are free unless otherwise indicated.

Symposiums & seminars

100th Birthday Celebration of the Chandler Mill Bridge. Located at the intersection of Chandler Mill and Bucktoe Rds in Kennett Township. Parking will be north of the bridge along Round Hill Rd. Appropriate mud shoes and warm clothing is advised. For more information, 610-925-0041. 1 p.m. Sun.

Have A Novel Holiday. Presented by Surrey Services for Seniors. Marple Public Library, 2599 Sproul Rd; 610-356-1510. www.marplepubiclibrary.org. 11 a.m. Mon.

Education Now - A Series of Discussions on Education reform and community. Presented by World Affairs Council of Phila. First program Local Visionaries, New Models: A Roundtable Discussion. Dr. Arlene Ackerman, Superintendent of the Phila. School District will offer opening remarks. The Franklin Institute, 22 N. 20th St. Registration 215-561-4700 or www. wacphila.org. Tickets $55. 6 p.m. Mon.

Lectures & literature

Long-Term Impacts of Marcellus Gas Drilling. Lecturer is Dr. Michel Boufadel, Temple University presented by Philadelphia Geological Society. Bryn Mawr College, Park Science Center, Rm 25. 101 N. Merion Rd, Bryn Mawr; 215-272-3373. www.philageo.org. 7 p.m. Thu.

Authors

Dr. Harold Kirsh. "Thank You, America." The National Liberty Museum, 321 Chestnut St; 215-925-2800. 6 p.m. Wed.

Screenings

In Our Own Hands: The Hidden Story of the Jewish Brigade in World War II. Introduction by Amiran Amitai, film lecturer and historian. The Temple Judea Museum, 8339 Old York Rd, Elkins Park; 215-887-8700. 2:30 p.m. reception, 3 p.m. screening Sun.

For a complete calendar of events, go to "What's Happening," at http://www.philly.com/philly/calendar