Colorado’s 150th anniversary

250th anniversary of the Declaration of Independence

About the commemoration

What is the Colorado 250-150 Commemoration?

Say it because you can: Semiquincentennial. Sesquicentennial. Sesquisemiquincentennial. 

In 2026, Colorado will observe two significant anniversaries: the signing of the Declaration of Independence–our semiquincentennial–and Colorado’s entrance into the Union–our sesquicentennial. We invite you to take part in this unique moment–our “Sesquisemiquincentennial”–as we commemorate Colorado’s shared history and highlight our place in the larger national story. 

As we create opportunities to commemorate and celebrate Colorado’s stories, the America 250 - Colorado 150 Commission is committed to recognizing that our shared history includes the experiences of all who have called Colorado home. 2026 will be an opportunity for us to come together as we celebrate Colorado by acknowledging our complete shared history, honor what makes Colorado unique, and recognize our shared destiny as we strive toward a more perfect union.

Land Acknowledgement: We acknowledge that the land currently known as Colorado has been the traditional homelands of Indigenous peoples since time immemorial.

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Signature Initiatives

The America 250 - Colorado 150 Commission will create opportunities for everyone in Colorado to participate in the Sesquisemiquincentennial through a variety of signature initiatives.  These will engage Coloradans in every area in our state by creating memorable public experiences, commemorating our shared history, and supporting Colorado communities.

Our signature initiatives consist of a wide array of projects ranging from family activities, programs for historic preservation,  opportunities for new education, and many more. As the America 250 - Colorado 150 Commission develops these programs in more detail, information will be shared here.

These signature initiatives provide opportunities for every Coloradan to participate in the 2026 commemoration, and are funded in part by our generous donors. Contact Commission staff at katie.roach@state.co.us to learn more about corporate sponsorship opportunities.

America 250 - Colorado 150 Newsletter

America at 250

America250 is a nonpartisan initiative working to engage every American in commemorating the 250th anniversary of the founding of the United States. This multi-year effort is an opportunity to pause and reflect on our nation’s past, honor the contributions of all Americans, and look ahead toward the future we want to create for the next generation and beyond.

America at 250
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Founding Legislation

The America 250 - Colorado 150 Commission is charged with guiding Colorado’s Sesquisemiquincentennial program in ways that empower every Coloradan to participate. The Commission consists of 15 members who represent Colorado’s diverse communities and several state agencies. It works closely with members of an Advisory Panel representing communities throughout the state. The Commission was created by the Colorado General Assembly with the support of Governor Jared Polis and is housed within History Colorado.

As we create opportunities to commemorate and celebrate Colorado’s stories, the America 250 - Colorado 150 Commission is committed to recognizing that our shared history includes the experiences of all who have called Colorado home, and that Colorado’s story does not end at our state borders but is part of the broader American story. Colorado’s Sesquisemiquincentennial in 2026 will be an opportunity for every Coloradan to come together as we: 

The America 250 - Colorado 150 Commission is committed to celebrating Colorado by acknowledging our complete history, honoring what makes Colorado unique, and recognizing our shared destiny as we strive toward a more perfect union.

 

Commissioners

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Christian Anschutz

Christian Anschutz, a third generation Colorado native, is the Managing Director of Western Development Group (WDG). WDG is a privately held real estate development company specializing in mixed-use projects in Denver. He is co-owner and vice chairman of the Colorado Springs Gazette and the Denver Gazette, serving on the editorial board for both newspapers. Christian also devotes significant time to his role as president of The Anschutz Foundation, which he has served as a board member since 1998.

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Danielle Oliveto

Danielle Oliveto has worked with Governor Jared Polis in various capacities since, off and on, since 2008. Danielle began as a field organizer Polis' first campaign for US Congress, and later worked as Staff Assistant, Scheduler, Deputy Communications Director, and Campaign Manager. n 2015 she relocated to San Francisco where she worked in local politics, focusing on housing and transportation issues in the Bay Area.

Dick Monfort

Dick Monfort

In 2023 Dick Monfort celebrated his 26th season with the Rockies franchise, and continues in his role as owner/chairman and chief executive officer for the club. Monfort, a Colorado native, and the Colorado Rockies Ownership Group have established the Colorado Rockies Baseball Club as a leading enterprise in the Rocky Mountain Region in both sports and business. Brothers Dick and Charlie Monfort have also done extensive community outreach through their family-directed Monfort Family Foundation.

hon. gary m. jackson

hon. gary m. jackson

Hon. Gary M. Jackson spent 37 as a partner in the law firms of DiManna Eklund Ciancio & Jackson and DiManna & Jackson. Here, he co-founded the Sam Cary Bar Association, the Sam Cary Scholarship Endowment Fund, and the Colorado Criminal Defense Bar. He also presided in the Criminal and General Session Divisions of the Denver County Court before retiring in 2020. In his retirement, he is active in historical presentations and serves as the Vice President of Marketing for Action Jackson Realty at Compass.

Jason L. Hanson

Jason L. Hanson

Jason L. Hanson is the Chief Creative Officer and Director of Interpretation and research at History Colorado. He is also the author of Game Changers: 100 Years of Negro League Baseball (History Colorado, 2020) and coauthor of A Ditch in Time: The City, The West, and Water with Patty Limerick (Fulcrum Publishing, 2012).

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Jay Seaton

Jay Seaton is the owner/publisher of The Daily Sentinel in Grand Junction, Colorado. Jay also manages four radio stations serving the Grand Valley that the Sentinel acquired in 2018. Prior to his arrival at the Sentinel in 2009, Jay was a corporate and commercial litigation partner at the law firm of Lewis Rice in Kansas City, Missouri. Prior to his position at Lewis Rice, Jay worked in toxic tort litigation at the law firm of Shook Hardy & Bacon. Jay serves on the Colorado Economic Development Commission and the CareerWise Colorado Board of Directors.

Linda Yip

Linda Yip

Originally from Taiwan, Linda Yip moved to the US in the mid-70s. Here, she met Jimmy Yip, and they ventured into business with three successful restaurants. They later shifted to real estate, partnering with Fred Miale and Al Alba to found the first Keller Williams franchise in Denver. As their businesses grew, the group combined several service companies to form a new company called Peliton. The couple's son Nathan's tragic passing in 2001 led them to establish the Nathan Yip Foundation, aimed at empowering underserved youth worldwide through education resources and support.

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Milo Marquez

Milo Marquez, a proud 5th generation Denverite, brings a wealth of experience as a former corporate director and educator. His commitment to community shines through his role as the former Director of the Latino Action Council, where he passionately advocated for Latinos statewide in Colorado.

Nathan Richie

Nathan Richie

Nathan Richie is a native of Colorado Springs, Colorado and is director at the Golden History Museum & Park in Golden, Colorado. He holds an MA in Museum Studies from John F. Kennedy University in Orinda, California and a BA in American History from Colorado State University.  Previously, Nathan served as Director of Exhibits and Programs at the McCormick Freedom Museum in Chicago and as Curator of Collections and Programs at the Swope Art Museum in Terre Haute, Indiana.

Ramona Martinez

Ramona Martinez

Ramona Martinez's family history goes back to the descendants of sixteenth and seventeenth century Spanish colonizers. While they landed in the south (now Mexico) they moved north when they were given Land Grants in the 1800’s to the area we now know as the San Luis Valley, Colorado. Martinez was inducted into the Colorado Women's Hall of Fame in 2010. Active in politics since the 1970s, Martinez was elected to Denver City Council In 1987 and served for a total of 16 years.

Stephanie hartman

Stephanie hartman

Stephanie Hartman has been the Social Studies Content Specialist at the Colorado Department of Education for 11 years. She is also a member of the Standards and Instructional Support Team, where she helps implement the Colorado Academic Standards. Previously, Stephanie taught high school social studies for 13 years. Finally, she has taught in Education at Metropolitan State University of Denver and the University of Nevada.

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Timothy Wolfe

Advisory Panel

The America 250 - Colorado 150 Advisory Panel is a geographically-diverse committee of individuals that inform the Commission and lead Local Organizing Committees. You can learn more about your Local Organizing Committee.

Virginia Castro

Virginia Castro

Denver & Cities of the Rockies

Emily Zinn

Emily Zinn

Denver & Cities of the Rockies

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Marilee Johnson

Pioneering Plains

Candace Payne

Candace Payne

Pioneering Plains

Taren Mulch

Taren Mulch

Pioneering Plains

Pam Denahy

Pam Denahy

Canyons & Plains

John Suthers

John Suthers

Pikes Peak Wonders

Rep. Donald Valdez

Rep. Donald Valdez

Mystic San Luis Valley

Zebulon Miracle

Zebulon Miracle

Mountains & Mesas

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Ellen Roberts

Mountains & Mesas

Chris Romer

Chris Romer

Rockies Playground

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Teresia Reed

The Great West

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Mark McGoff

Denver & Cities of the Rockies

Commission Staff

The America 250 - Colorado 150 Commission is supported by Program Director Katie Roach and a dedicated team of volunteers and interns. 

Get in touch by emailing katie.roach@state.co.us, or send a letter to: 

America 250 - Colorado 150 Commission
History Colorado
1200 Broadway
Denver, CO 80203

Commission meetings

Members of the public are welcome to attend Commission meetings.

 

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