The History Center of San Luis Obispo County, 696 Monterey Street, San Luis Obispo, CA (2026)

10/18/2026

Happy Semiquincentennial, America!

In celebration of our nation’s 250th Anniversary, The History Center of San Luis Obispo County is proud to bring you a look at this week in San Luis Obispo County History!

Throughout October 1892, crews built labor camps and wagon roads into the Cuesta Grade to start boring the seven tunnels needed to bring the Southern Pacific Railroad into San Luis Obispo. The blasting removed a record 1.1 million cubic yards of hand-drilled rock, and the line finally connected SLO to San Francisco in May 1894.

On October 20, 1942, the U.S. Army's 7th Infantry Division arrived at Camp San Luis Obispo to begin training before shipping out to the Pacific Theater of World War II. The camp, originally built in 1928 as "Camp Merriam" for the California National Guard, cycled through several Army divisions during the war, hosting tens of thousands of soldiers at a time.

In 1946, Pismo Beach held its first Clam Festival, celebrating the giant Pismo clams the beach was once famous for. Complete with a parade and the beloved Clam Chowder Cook-Off, the 80th Annual Pismo Beach Clam Festival will take place on October 17–18, 2026.

And on October 18, 1987, Zac Efron was born in San Luis Obispo later moving to Arroyo Grande. Before starring in “High School Musical”, he appeared in some of his own Arroyo Grande High School theater productions and performed at Oceano’s “Great American Melodrama”.

This Week in San Luis Obispo County History has been brought to you by The History Center of San Luis Obispo County.

Celebrating our nation’s semiquincentennial all year by taking a look at our local history, Happy 250th America!

10/18/2026

Happy Semiquincentennial, America!

In celebration of our nation’s 250th Anniversary, The History Center of San Luis Obispo County is proud to bring you a look at this week in San Luis Obispo County History!

Throughout October 1892, crews built labor camps and wagon roads into the Cuesta Grade to start boring the seven tunnels needed to bring the Southern Pacific Railroad into San Luis Obispo. The blasting removed a record 1.1 million cubic yards of hand-drilled rock, and the line finally connected SLO to San Francisco in May 1894.

On October 20, 1942, the U.S. Army's 7th Infantry Division arrived at Camp San Luis Obispo to begin training before shipping out to the Pacific Theater of World War II. The camp, originally built in 1928 as "Camp Merriam" for the California National Guard, cycled through several Army divisions during the war, hosting tens of thousands of soldiers at a time.

In 1946, Pismo Beach held its first Clam Festival, celebrating the giant Pismo clams the beach was once famous for. Complete with a parade and the beloved Clam Chowder Cook-Off, the 80th Annual Pismo Beach Clam Festival will take place on October 17–18, 2026.

And on October 18, 1987, Zac Efron was born in San Luis Obispo later moving to Arroyo Grande. Before starring in “High School Musical”, he appeared in some of his own Arroyo Grande High School theater productions and performed at Oceano’s “Great American Melodrama”.

This Week in San Luis Obispo County History has been brought to you by The History Center of San Luis Obispo County.

Celebrating our nation’s semiquincentennial all year by taking a look at our local history, Happy 250th America!

10/12/2026

Mumtober tickets are available on our website!

10/11/2026

Happy Semiquincentennial, America!

In celebration of our nation’s 250th Anniversary, The History Center of San Luis Obispo County is proud to bring you a look at this week in San Luis Obispo County History!

On October 14, 1907, an old gas works building on 280 Pismo Street caught fire. One daily Telegram headline read “FIERCE FLAMES CAUSE MUCH LOSS: SAN LUIS OBISPO IN DARKNESS”. Gas works engineer Frank Park was seriously injured while attempting to put out the flames and power was lost across the city.

On October 12, 1931, the very first Pioneer Day took place in Paso Robles. The local business community, recognizing the region’s agrarian roots, organized a day free of commercial concessions where locals could gather, eat, and enjoy each others’ friendships. The goal of the day was to celebrate the community that had supported the town’s businesses for so long. This led to the slogan "Leave Your Pocketbook at Home, Come Celebrate in Friendship.” This year, Pioneer Day will celebrate its 96th anniversary and occur on the October 10th, of course in Paso Robles, with a free bean feed in City Park following the parade.

This Week in San Luis Obispo County History has been brought to you by The History Center of San Luis Obispo County.

Ya like soup? Get your tickets for our signature fall event, Mumtober, happening on the afternoon of Saturday, October 24th, on our website:
Historycenterslo.org.

This Week in San Luis Obispo County History has been brought to you by The History Center of San Luis Obispo County. Celebrating our nation’s semiquincentennial all year by taking a look at our local history. Happy 250th America!

10/08/2026

Mumtober is back! Join us at the Dallidet Adobe & Gardens on Saturday, October 24 for the History Center of SLO County's signature event. Enjoy five harvest soups made from garden produce, local w**es, a chrysanthemum harvest and a lovely afternoon in the gardens before the Dallidet Adobe closes for the season.

Tickets: https://www.my805tix.com/e/mumtober-26/tickets

10/04/2026

Happy Semiquincentennial, America!

In celebration of our nation’s 250th Anniversary, The History Center of San Luis Obispo County is proud to bring you a look at this week in San Luis Obispo County History!

On September 30, 1909, 40-year-old Gon Ying Louis was shot and killed as she slept in the family home at Palm and Chorro streets, the site of today’s Ah Louis Store. Gon Ying Louis was the second wife of Ah Louis, a prominent Chinese labor contractor and shopkeeper. Police arrested 41-year-old Willie Louis, the victim's stepson and son of Ah Louis. On October 9, Ah Louis publicly denounced his son, claiming he had “washed his hands” of his eldest son. Willie Louis was later convicted of murder and executed.

This week in 1987, a remarkable heat wave swept into San Luis Obispo County. An early sign of global warming, San Luis Obispo reached 105°F on October 4. The Tribune notes that SLO reached 111 degrees on October 5 and 6. The intense weather event was driven by a powerful high-pressure ridge paired with strong, northeasterly Santa Lucia winds. Many students and residents were forced to sleep outside, finding no relief at night without air conditioning.

This Week in San Luis Obispo County History has been brought to you by The History Center of San Luis Obispo County.

Ya like soup? Get your tickets for our signature fall event, Mumtober, happening on the afternoon of Saturday, October 24th, on our website:
Historycenterslo.org.

This Week in San Luis Obispo County History has been brought to you by The History Center of San Luis Obispo County. Celebrating our nation’s semiquincentennial all year by taking a look at our local history. Happy 250th America!

09/28/2026

WE NEED YOUR HELP, PLEASE!

The County of San Luis Obispo is seeking public input from community members on how to steward $3 million in federal funding, and it would mean the world to us if the History Center is included for consideration to access some of the funding.

That's where you come in! We're asking you, our supporters, to take the County's survey and voice your support for the work the History Center of SLO County does. The second to last survey question asks about goals not included in the survey that you feel need to be addressed, and we'd love it if you could voice your support for local history and ask the County to prioritize the work we do by providing funding for the History Center of SLO County.

Restoring funding for the History Center through the 2027 Community Development Needs Assessment and subsequently in annual County budgets would let the History Center:

Maintain and expand exhibits highlighting county history,
Support student interns through Cal Poly’s “Learn by Doing” model, helping them address the cataloging backlog and incomplete database,
Keep the Research Room and archives open and accessible, and
Provide the county leadership with an important opportunity to recognize that historic preservation is a community development need!

Take the survey today to support the History Center and the work we do! We appreciate your support.

https://forms.cloud.microsoft/Pages/ResponsePage.aspx?id=dMfDhN9_4kClkCey5w-BJtCQ2w-_3jhHoXnmpO0QxYZUNzBPNzdGQjNLSVZSTVJRVDkxSU9GMFdLWi4u

THANK YOU!

09/27/2026

Happy Semiquincentennial, America!

In celebration of our nation’s 250th Anniversary, The History Center of San Luis Obispo County is proud to bring you a look at this week in San Luis Obispo County History!

On October 1, 1903, Cal Poly held its first classes with just 20 students and offered programs in agriculture, mechanics, and household arts. Admission requirements stated students only needed to be at least 15 years old and have completed the 8th grade.

Too fast to live, too young to die! Sadly, on September 30, 1955, 24-year-old actor James Dean was killed in a car crash near the intersection of Highways 41 and 46 in Cholame, an unincorporated town 7 miles from Shandon. Dean was driving his Porsche 550 Spyder west on 46 toward a racing event in Salinas. This tragedy ended the short career of a Hollywood icon best known for his role in “Rebel Without A Cause”.

On September 28, 1957, legendary Hall of Fame and Super Bowl Winning Coach, television broadcaster, and the namesake of the world’s most famous football video game, John Madden, played his first football game for Cal Poly against Humboldt State playing both as an offensive and defensive lineman.

We opened 3 new exhibits this summer. Come check ‘em out! "Food Sovereignty - A Restorative Revolution" is an exhibit we did in collaboration with the Northern Chumash / ytt tribe, "The Spirit of '76" looks at Patriotism and Americana throughout San Luis Obispo County history, and there is a celebration of the new San Luis Obispo Repertory Theater coming soon which will complete the "Cultural Arts Corridor".

This Week in San Luis Obispo County History has been brought to you by The History Center of San Luis Obispo County. Celebrating our nation’s semiquincentennial all year by taking a look at our local history. Happy 250th America!

09/20/2026

Happy Semiquincentennial, America!

In celebration of our nation’s 250th Anniversary, The History Center of San Luis Obispo County is proud to bring you a look at this week in San Luis Obispo County History!

At a time when there were no airplanes, this week back in 1888, Mr. and Mrs. D. H Dallidet, Jr., part of the Dallidet family, the first commercial w**e makers in the country, left for a 3 month trip to New York where the parents of Mrs. Dallidet resided.

On September 22, 2001, 11 days after the worst terrorist attack in our nation’s history, roughly 150 San Luis Obispo residents and Cal Poly students gathered outside the city government building for a peace walk. The procession looped roughly ten blocks through downtown before returning to where it started.

Two nights after that, on September 24, Cal Poly held a public forum titled “Contemplating the Option of Peace” in front of a crowd trying to make sense of the previous two weeks.

l Poly President Warren Baker published an open letter to the university community condemning discrimination based on ethnicity or religion outright.

We opened 3 new exhibits this summer. Come check ‘em out! "Food Sovereignty - A Restorative Revolution" is an exhibit we did in collaboration with the Northern Chumash / ytt tribe, "The Spirit of '76" looks at Patriotism and Americana throughout San Luis Obispo County history, and there is a celebration of the new San Luis Obispo Repertory Theater coming soon which will complete the "Cultural Arts Corridor".

This Week in San Luis Obispo County History has been brought to you by The History Center of San Luis Obispo County. Celebrating our nation’s semiquincentennial all year by taking a look at our local history. Happy 250th America!

09/16/2026

We hope you'll join us on October 24 for a celebration of all things autumn at the Dallidet Adobe & Gardens!

Please join us us for our Fall Harvest to celebrate the Dallidet Adobe and Gardens' fall bounty, featuring:

🍂 A delicious catered dinner made with produce from the Dallidet Garden
🍂 A keynote speech from yak titʸu titʸu yak tiłhini (ytt) Tribal Elder, Wendy Lucas, about America's semiquincentennial from an Indigenous perspective
🍂 Silent and live auctions supporting the History Center's work
🍂 A Chrysanthemum flower harvest
🍂 A tasting flight of soups made from produce from the Dallidet Garden
🍂 Local b**r and w**es
🍂 Live music
🍂 A celebration of all things harvest and autumn!

Your ticket not only gives you access to everything above, but supports the work the History Center of San Luis Obispo County does every day to preserve local history. Your support allows us to keep the museum open to the public at no cost, and maintain the beautiful historic Dallidet Adobe & Gardens for generations to come.

Get your tickets here: https://event.auctria.com/45d521fd-48b4-43a8-b12e-6b5d23630466/

The History Center of San Luis Obispo County

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