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Why is the State of California’s Constitution written in ...

“Why is the State of California’s Constitution written in Spanish and English because of the treaty of Guadalupe Hidalgo”
Incorrect claim
Confidence: High Checked on July 27, 2026

Summary

California’s first constitution of 1849 was indeed published in both English and Spanish, and the law required official documents to be bilingual for about thirty years. However, this bilingual requirement was a decision of the state constitutional convention to serve the multilingual population, not a direct result of the Treaty of Guadalupe Hidalgo, which did not mandate a bilingual constitution.

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Sources 60 searched

sos.ca.gov
archives.cdn.sos.ca.gov
  • 1849 California Constitution Fact Sheet

    Sainsevain did not sign his name in ink as he was ... W.E.P. Hartnell was the official translator for the Convention. Section 21, Article XI of the 1849 Constitution · decreed that all laws must be published in Spanish and English. Thus, for its first 30 years, California was a

archives.gov
history.state.gov
  • Historical Documents - Office of the Historian

    Consequently, whatever claim existed ... of Upper California could not claim diplomatically in the capacity of citizens of the United States either the principal or the interest accrued prior to February 2, 1848; but the evidence and the facts established on the trial before the commission created under the treaty of July 4, 1868, demonstrate the perfect equity of the claim for the installments of interest falling due annually after the treaty of Guadalupe-Hidalgo to the claimants ...

nps.gov
  • American Latino Theme Study: Law (U.S. National Park Service)

    The section on land begins with the U.S.-Mexico War that, as mentioned above, ended with the Treaty of Guadalupe Hidalgo and concludes with a description of the marital property rules corresponding to the ten community property states, which are also a vestige of the Spanish and Mexican civil law systems.

nrm.dfg.ca.gov
ssc.wisc.edu
content.ucpress.edu

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