Duncan-Williams Inc. Investment Bankers will hold a small-business succession planning luncheon Tuesday, Aug. 27, from 11 a.m. to 1 p.m. at Duncan-Williams, 6750 Poplar Ave., suite 300. Topics include federal estate tax laws, choosing a successor, calculating the fair market value of your business, and more. Cost is free; space is limited. RSVP to roland.cole@duncanwilliams.com or 435-4277.

Memphis Botanic Garden will host its “European Vacation” Tuesdays on the Terrace wine tasting, Tuesday, Aug. 27, from 6 p.m. to 8 p.m. at the garden, 750 Cherry Road. Tickets are $25 for members and $35 for nonmembers; reservations are required. Visit memphisbotanicgarden.com.

Downtown Neighborhood Association will meet Tuesday, Aug. 27, at 6 p.m. at Burch, Porter & Johnson law offices, 130 N. Court Ave. Amy Weirich, Shelby County district attorney general, will speak. Visit memphisdna.org.

Shelby Farms Park will hold a guided twilight nature hike Tuesday, Aug. 27, from 6 p.m. to sunset, starting at the Shelby Farms Visitors Center, 500 N. Pine Lake Drive. Cost is free. Visit shelbyfarmspark.org.

Talk Shoppe will meet Wednesday, Aug. 28, from 9 a.m. to 10 a.m. at DeVry University, 6401 Poplar Ave., sixth floor. The topic is “Mastermind Principle: Based on the book ‘Think and Grow Rich’ by Napoleon Hill.” Cost is free. Visit talkshoppe.biz.

B.I.G. for Memphis, a business interest group that brings together Memphis Police colonels and business leaders, will meet Wednesday, Aug. 28, from 10 a.m. to 11:30 a.m. at Phelps Security 4932 Park Ave. Richard Janikowski and Phyllis G. Betts will present “What Can Neighborhoods Do About Crime.” Visit phelpssecurity.com or email bigformemphis@phelpssecurity.com.

WKNO will host March on Washington online chats Wednesday, Aug. 28, from 11 a.m. to 8 p.m. in the WKNO Digital Media Center, 7151 Cherry Farms Road. The event will include screenings of the PBS documentary “The March” and online chats and hosted discussions about the civil rights movement and 1963 march. Participants can watch from home or from noon to 6 p.m. at the Poplar-White Station, North or Whitehaven branch libraries. Visit wkno.org.

The Rotary Club of Memphis East will meet Wednesday, Aug. 28, at noon at The Racquet Club of Memphis, 5111 Sanderlin Ave. Greg Gonzales, commissioner of the Tennessee Department of Financial Institutions, will speak. Cost is $17. RSVP to Lee Hughes at lmhughes@bellsouth.net.