It's Wednesday, Aug. 15, Relaxation Day. Happy birthday to U.S. Supreme Court Justice Stephen Breyer (1938). Today in 1969, the three-day Woodstock music festival opened on Max Yasgur's farm near Bethel, N.Y. It rained and things got muddy. It should be hazy again this morning, with a west breeze and a high in the low 90s. Here are a few things to do while you relax and listen to your Richie Havens albums today:

• Hear a presentation on drafting the Oregon Constitution during an era of racism, noon, Oregon Historical Society, 1200 S.W. Park Ave. www.ohs.org

• See a double-feature of "Close Encounters of the Third Kind" and "12 Monkeys" at OMSI's 2018 Sci-Fi Film Festival, 6 and 8:30 p.m., 1945 S.E. Water Ave. Cost: $6 to $7. www.omsi.edu

• Head to the drive-in and see "Rocky" at the Portland Expo Center's Drive-In Movie Spectacular, gates open at 6:30 p.m., movie at about 8 p.m., 2060 N. Marine Drive. www.expocenter.org/content/pdx-drive-movie-spectacular

• Talk about neighborhood safety issues in Southeast Portland, 7 p.m., Lynchwood Christian Church, 3815 S.E. 174th Ave. www.lynchwood.com/