Tuesday, Sept. 18

Author appearance Bob Duggan, Tai Sophia Institute co-founder and author, will discuss and sign his book, "Breaking the Iron Triangle: Reducing Health-Care Costs in Corporate America," at 6:30 p.m. at 7750 Montpelier Road in Laurel. Information: 410-888-9048 or tai.edu.

Wednesday, Sept. 19

Meeting Chapter 1734 of the National Active and Retired Federal Employees Association meets at Howard County Library's East Columbia branch, 6600 Cradlerock Way, at 10 a.m. Light refreshments will be served at 9:30 a.m. Guest speaker is John Sarbanes. Information: 410-381-6797.

Friday, Sept. 21

Twilight hike Howard County Conservancy invites everyone to celebrate the fall equinox with a twilight hike at 7 p.m. Participants will meet at the Education Building to begin the hike. Check the website in case of inclement weather. Cost is $10 per family; $5 for individuals. The Conservancy is located on Old Frederick Road (Route 99) between Bethany Lane and Woodstock Road. Information: 410-465-8877 or hcconservancy.org.

Saturday, Sept. 22

Concert One World Coffeehouse presents one of Scotland's most popular folk bands, North Sea Gas, in concert from 7 p.m. to 9:30 p.m. at the Owen Brown Interfaith Center, 7246 Cradlerock Way in Columbia. Tickets are $12 and $6. Information: 410-381-0097 or uucolumbia.net/concerts.

Future

Anniversary Boy Scout Troop 306 of Catonsville celebrates its 100th anniversary this year and is looking for former Scouts and committee members associated with the troop to come together for a picnic Sunday, Sept. 23. Contacts are: Dennis Gray, 443-286-2545 or dennisgray2@gmail.com, or Kathy MacLeod, kdecmac@aol.com.

Salon series The Columbia Art Center and Little Patuxent Review presents "Jazz Legends of Washington and Baltimore," featuring musician Seth Kibel and pianist Sean Lane from 7 p.m. to 8 p.m. Sept. 24, at 6100 Foreland Garth in Columbia. Free. Information: 410-730-0075.

Open house AT:LAST Inc. presents "Parents Night Out: Let's Talk Technology," an open house for parents of children with disabilities from 4 p.m. to 8 p.m. Sept. 24 at 7050 Oakland Mills Road in Columbia. Free; RSVP required by Friday, Sept. 21. Call 410-381-2667 with the number of adults attending.

Concert The Town Center Community Association presents a "Vocal Recital" featuring the U.S. Army Field Band at 7 p.m. Sept. 28 in the ballroom of Historic Oakland, 5430 Vantage Point Road in Columbia. The concert pays homage to vocalist Dietrich Fischer-Dieskau. Free; light refreshments will be served. To register and for more information, call 410-730-4744.

Festival Celebrate Hispanic culture at the Columbia Association's 10th annual "Dia de la Familia" from 3 p.m. to 6 p.m. Sept. 29 at the Columbia SportsPark. The free event includes a DJ playing Latin music, a salsa dance competition, food, moon bounce, children's entertainers, arts and crafts, Zumba demonstration, soccer games and more. Information: 410-715-3162.

Classical music Sundays At Three Chamber Music Series presents pianist Brian Ganz in an all-Chopin program at 3 p.m. Sept. 30 at Christ Episcopal Church, 6800 Oakland Mills Road in Columbia. Tickets are $15; free for those ages 17 and younger accompanied by a paying adult. Information: 443-288-3179 or sundaysatthree.org.

Awards dinner The Community Action Council holds its 17th annual Holland Awards Dinner at 6 p.m. Oct. 17 at Turf Valley Resort and Conference Center, 2700 Turf Valley Road in Ellicott City. University of Maryland athletic director Kevin Anderson will be the keynote speaker. Retired educator Sydney Cousin will be honored as the Humanitarian of the Year, and Ascend One Corp. will receive the Service Award. Tickets are $74; $650 for a table of 10. Registration is required by Sept. 30. Information: cac-hc.org.

Announcements for the datebook may be sent by mail to The Baltimore Sun in Howard County, 501 N. Calvert St., Baltimore 21278; by email to howard.events@baltsun.com; or by fax to 410-332-6455.