Horizons Unlimited Supplementary Education Center will celebrate its 40th birthday Nov. 17 with a holiday laser light show and activities.

Established in 1967 in a renovated peanut packing plant warehouse on a hill behind the current Knox Middle School, Horizons has grown to 19,000 square feet of instructional and meeting space for school system staff and students.

The center's primary focus is to provide innovative educational science and history experiences for public and private kindergarten through 12th grade students from Rowan and Davie counties.

Horizons draws financial support from the Rowan and Davie boards of commissioners, Salisbury City Council, local foundations and donors.

The birthday celebration will be from 4 p.m. to 6 p.m. The event is free to the public.

Activities include: Laser light show in Margaret C. Woodson planetarium; scavenger hunt through decorated state-themed trees in the exhibit hall; pictures, articles and memorabilia showing 40 years of growth; hands-on activities about space; native American exhibits; Aubrey Atkinson prints of historic places; rainforest and aviary; 1842 one-room Setzer School; environmental activities.

Horizons Unlimited is located at 1636 Parkview Circle in Salisbury. Call 704-639-3004 for more information.