TODAY

Immunization clinic by the Lawrence-Douglas County Health Department (no flu shots), 8:30 a.m.-11:30 a.m. and 1 p.m.-8 p.m., 200 Maine, 843-0721.

Douglas County Commission meeting, 8:30 a.m., county courthouse, 1100 Mass.

Trick or treat party, by the American Taekwondo Association Black Belt Academy, 4 p.m.-6 p.m., 1540 Wakarusa Drive, free, register by calling 749-7337.

Halloween concert and costume contest, with the Seem-To-Be-Players, 4:30 p.m., Lawrence Arts Center, 940 N.H., $5 tickets, 843-2787.

Safe trick-or-treating with the Pioneer Ridge residents, 6:30 p.m.-8 p.m., Pioneer Ridge Retirement Community, 4851 Harvard Road, free admission, families welcome.

Lecture: “Insider’s Perspective of How Bush Won,” by Matthew Dowd, chief campaign strategist for Bush-Cheney 2004, 7:30 p.m., Dole Institute of Politics, 2350 Petefish Drive, free admission.

TUESDAY

Explore Evolution, the new multimedia exhibition at Kansas University Natural History Museum and Biodiversity Research Center. The exhibit will be on display for about two years. Hours, 9 a.m.-5 p.m., Monday-Saturday and noon to 5 p.m., Sunday. Free. For more information, visit: www.nhm.ku.edu.

Flu shots, sponsored by the Lawrence-Douglas County Health Department, 9:30 a.m.-10:30 a.m., First United Methodist Church, 402 Elmore St., Lecompton, $15 for babies and $20 for adults, 843-3060.