Today’s top picks from our online calendar. Find more events at siouxcityjournal.com/calendar.

The Civil War: 1861-1865

Dr. Don Hickey will examine the military and naval history of the conflict and explore how a war over the future of the Union turned into a war to abolish slavery. Admission will be free; a reception will follow the 2 p.m. program at Betty Strong Encounter Center, 900 Larsen Park Road. Visit www.siouxcitylcic.com or call 712-224-5242 for more information.

WinnaVegas Flea Market

You never know what you may find at WinnaVegas Casino Resort, 1500 300th St. in Sloan, Iowa. Enjoy some of the finest treasures, goods and food noon to 5 p.m. Interested in becoming a vendor? Call 1-800-HOT-WINN ex 7195 or 7188.

"If I Were a Captain Art Contest"

Students, pre-school through fifth grade, are invited to imagine themselves commanding their own expedition and then create artwork based on their imaginings. Artwork must be original and submitted by March 1 to the Sioux City Lewis & Clark Interpretive Center, 900 Larsen Park Road, Sioux City, Iowa 51103 or to SOlson@siouxcitylcic.com. Prizes will be awarded March 10 at the Center. Visit www.siouxcitylcic.com or 712-224-5242 for more information.