“Social, Ethnic, and Racial Boundaries on Campus and Community in the 21st Century”; 8 a.m.-5 p.m. Friday, 9 a.m.-4 p.m. Saturday, Prairie Room, Bone Student Center, Illinois State University, Normal; Friday’s theme: “Race and Immigration Under the Trump Administration”; Saturday’s theme: “Microaggressions in Everyday Life”; details at news.illinoisstate.edu/2018/01/conference-explores-social-ethnic-racial-boundaries-february-9-10/.
Free Friday at the zoo; Friday, Miller Park Zoo, Bloomington; free admission.
Book Adventures: Happy Valentine’s Day!; 10:30 a.m.-noon Friday-Saturday, Normal Public Library; ages 3-7.
Abraham Lincoln’s 209th birthday; 9 a.m.-4 p.m. Saturday, David Davis Mansion State Historic Site, Bloomington; free; www.daviddavismansion.org.
Logan County Democrats; 10 a.m. Saturday, Lincoln Public Library; 217-796-3519.
“The Soldier’s Plot” documentary; 1 p.m. Saturday, Vespasian Warner Library Museum Room, Clinton; followed by Q&A with the producer and DeWitt County historian.
Guns and Hoses charity hockey game; 5 p.m. Saturday, Grossinger Motors Arena, Bloomington; doors open at 4 p.m.; benefits Special Olympics Illinois; $10; age 4 and under, free.
Chili supper; 5-7 p.m. Saturday, Blue Ridge High School; sponsors: Key Club and Kiwanis Club; $5; proceeds benefit community service projects.
Trivia Night fundraiser; 6 p.m. Saturday, Interstate Center, Bloomington; benefits: McLean County Extension Service Foundation; 6 p.m. Chili & Chocolate Challenge; 7 p.m. trivia competition by Twin City Trivia; silent auction, raffle; $50-$60 per team; go.illinois.edu/MCESF_TRIVIANIGHT.