“The McGuckin Way — 70 Years as Boulder’s Favorite Everything Store” exhibit: 9 a.m., Museum of Boulder, 2205 Broadway, Boulder. Celebrate the 70th anniversary of McGuckin Hardware as “Boulder’s Favorite Everything Store” and its growth as an icon in the Boulder community at the Museum of Boulder. From its humble beginnings in 1955, McGuckin’s has remained a family-owned and operated business. It stands as a testament to the dedication and passion passed down through generations. This commitment to community and personalized service has been a cornerstone of the store’s success and enduring presence in Boulder. That and a legendary product selection — an unmatched mix of just about everything imaginable under one roof. The exhibit takes a look back at the McGuckin evolution using photos and artifacts collected from the Green Vest family archives. Free-$10, 303-449-3464, museumofboulder.org.

Brock Stephen concert: 6 p.m., Trident Booksellers & Café, 940 Pearl St., Boulder. Brock Stephen is a folk and country singer-songwriter whose music reflects a deep connection to storytelling and the open road. Traveling across the country in a converted van, he brings heartfelt songs to life in small towns, city streets and intimate venues throughout the U.S. Rooted in the spirit of the traveling troubadour, Stephen’s songwriting captures the beauty, hardships and quiet moments of life on the move. tridentcafe.com.

Persian Cultural Circle: 1 p.m. Saturday, George Reynolds Branch, 3595 Table Mesa Drive, Boulder. Learn about the summer festival called Tirgan. Celebrate summer with Persian dance, wish bracelets, water play and more. calendar.boulderlibrary.org.

“Richard II” performance: 7 p.m. Saturday, University Theatre, Roe Green Theatre, 1515 Central Campus Mall, Boulder. When corrupt, despotic King Richard II ventures off to wage war, the banished Bolingbroke invades to reclaim his stolen inheritance. Embraced by an angry populace and co-opted by self-righteous, greedy nobles, he takes the throne and sets the stage for 32 years of civil war. The first chapter of Shakespeare’s four-part “game of thrones” examines issues critical to contemporary politics, from the embrace of autocracy, the power of wealth and whether a nation divided can stand. $22-$89, 303-492-1411, calendar.colorado.edu.

Charles Roamer author reading: 7 p.m. Saturday, Inkberry Books, 7960 Niwot Road, Niwot. Charles Roamer will read from his new book “83 Odyssey.” In 2014, Fort Collins author, Charles Roamer, made a long road trip in his Toyota Corolla down fascinating, old U.S. 83, which runs from the Canadian to the Mexican border through the Great Plains states. He found this vast region of the nation to be much more beautiful and interesting than commonly regarded, which inspired him to write “83 Odyssey — An Adventure Down the Spine of America on U.S. Highway 83.” Free, 720-412-1548, inkberrybooks.com.

“One Sky” screening: 1 p.m. Sunday, Fiske Planetarium, 2414 Regent Drive, Boulder. One Sky Project is an international collaboration focused on increasing understanding about cultural and indigenous astronomy, its historical and modern applications and how the sky connects everyone. Visit ancient Greece and find patterns in the Forge of Artemis; measure time with the Diné or Navajo people to seek the Thunderbird; explore 18th-century India in Jai Singh’s Dream; journey with First People of what is now northern Canada in a Celestial Canoe; visit Japan to find the patterns of the Samurai and Stars; and venture out into the ocean with Hawaiian navigator in Wayfinders. $8-$12, 303-492-5002, calen darwiz.com.

Rugburn and Chroma Lips concert: 6 p.m. Sunday, Trident Café, 940 Pearl St., Boulder. Rugburn is a band for the time and place. Chroma Lips is a Motrik driven psych band from Denver. Free, 303-443-3133.

Guatemalan Textiles weaving workshop: 4 p.m. Monday, NoBo Corner Library, 4600 Broadway, Boulder. Learn about the colorful world of Guatemala through textiles. Learn about the Maya, weaving and how different people in Guatemala identify where they come from through design in their Huipils. Test motor skills, and learn how to weave. Registration required. calendar.boulderlibrary.org.

Chess Club: 5:30 p.m. Monday, Boulder Public Library, 1001 Arapahoe Ave., Boulder. Play chess and learn with chess master Joshua Romero on second and fourth Mondays every month. Players of all abilities are welcome to drop in. Ages 8-18. calendar.boulderlibrary.org.

Music in the Park: 5:30 p.m. Monday, Boulder Farmers Market, 13th St., Boulder. Celebrate Boulder’s new nature play area with a free outdoor concert by Jeff & Paige — award-winning kids’ performers who blend music, science and fun. Bring a blanket, pack a picnic and enjoy an hour-long show perfect for young families. The play area will be open before and after. Free, givebutter.com.

Editor’s note: Availability and scheduling of events may be subject to change.