Bear Flag Sesquicentennial Time Capsule
Sonoma, Sonoma County, California
Marker Inscription
Sesquicentennial Time Capsule Original site of the "Bear Flag Raising" A record of the 1996 Bear Flag Sesquicentennial Commemoration and Times, to be opened at the Bicentennial Commemoration in 2046.
Erected by Native Sons of the Golden West
The Story
Set at the very spot where the Bear Flag was raised in 1846, this time capsule was sealed in 1996 during the 150th-anniversary commemoration of that event, to be opened at the bicentennial in 2046. It links the founding moment of California's short-lived republic to the community that still gathers on Sonoma's plaza to remember it. The marker turns a historic site into a bridge between generations.
Why it matters
It fixes and honors the exact location of the Bear Flag Raising, one of the founding episodes of American California.
The story behind this marker
AI contextThe era
This spot in Sonoma's plaza marks where, in June 1846, American settlers raised a homemade flag and declared California free of Mexican rule — an episode from the far frontier of Mexican Alta California on the eve of the Mexican-American War.
A century and a half later, in 1996, Sonoma gathered on the same ground to mark the 150th anniversary of that day. The time capsule set here belongs to that commemoration, a modern layer laid over an old story.
People & events
In 1846 the events remembered here unfolded fast: settlers took the town, raised their bear-and-star banner, and proclaimed a short-lived republic that lasted only weeks before larger forces swept it aside.
In 1996, on the sesquicentennial — the 150th anniversary — the community sealed a record of their own time and place into this capsule, to be opened at the bicentennial in 2046. It gathers, in effect, a snapshot of Sonoma as it stood a century and a half after the founding moment.
The marker turns a single patch of ground into a meeting point across three centuries: the 1846 raising, the 1996 sealing, and the 2046 opening still to come.
Its place in the American story
The moment this capsule honors was a hinge in the American story — the summer California began its passage from Mexican province to American state, and the birth of the bear-and-star emblem the state still flies.
But the capsule marks something broader too: the way communities keep faith with their own history. By fixing the exact site of the raising and sending a message forward to 2046, Sonoma tied a national founding episode to a very human, very local promise between generations.
If you visit
Look for the capsule marker at the spot it calls the original site of the Bear Flag Raising, in Sonoma's historic plaza. Part of its charm is the countdown built into it: it is not to be opened until 2046, so a visit now catches it mid-wait.
Stand there and you are sharing ground with the people of 1846 who raised the flag, the people of 1996 who sealed the box, and whoever gathers in 2046 to open it. Few markers ask you to think in both directions at once.
The plaza around you is a walkable, tree-shaded square full of early California history, and an ideal starting point for a day in Sonoma's wine country. Note the date on the capsule before you move on — you may want to come back for the opening.
Written by AI to add context, grounded in the marker’s inscription and the historical record. The inscription above is the original, unaltered text.
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Related events
- · Bear Flag Revolt
- · 1996 Bear Flag Sesquicentennial
Themes & tags
Nearby & related markers
Bear Flag Revolt Monument
Sonoma, CA
On June 14, 1846, a band of American settlers in Mexican Alta California seized the town of Sonoma and raised a hastily made flag bearing a grizzly bear and a lone star, declaring the short-lived 'California Republic.' The Bear Flag Revolt lasted only weeks before U.S. forces folded it into the Mexican-American War, but it gave California its lasting emblem. This monument, erected on Independence Day 1907 near Sonoma Plaza, commemorates that day.
Bear Flag Monument (1907)
Sonoma, CA · est. 1907
This monument, dedicated on Independence Day in 1907, commemorates the raising of the Bear Flag at Sonoma on June 14, 1846. On that day American settlers declared an independent "California Republic" in what was then Mexican territory. The gesture lasted only weeks before U.S. forces asserted control during the Mexican-American War, but its bear-and-star emblem endured as California's state symbol.
Bear Flag Monument
Sonoma, CA
On June 14, 1846, a band of American settlers known as the Bear Flag Party raised a homemade flag on this spot and declared California's independence from Mexican rule, launching the short-lived Bear Flag Republic. Weeks later, on July 9, 1846, Lieutenant Joseph W. Revere lowered the Bear Flag and raised the American flag, following the U.S. seizure of Monterey by Commodore John Drake Sloat. This monument, erected by the Native Sons of the Golden West and the State of California, commemorates those events.
Bear Flag Raising, June 14, 1846
Sonoma, CA · est. 1914
In June 1846, a small band of American settlers in Mexican Alta California seized the town of Sonoma and raised a hastily made flag bearing a grizzly bear and a lone star, proclaiming a short-lived "California Republic." The uprising, remembered as the Bear Flag Revolt, unfolded just as the United States and Mexico slid into war. Within weeks U.S. forces took control, and the improvised banner became the ancestor of California's state flag.