FORTISVEX 31 Star U.S. Flag 4x6 Feet Nylon - Made in USA with Brass Grommets

31 Star U.S. Flag History

The thirty-one-star flag records the arrival of California in the Union and the nation’s expansion to the Pacific. California became the thirty-first state on September 9, 1850. Its star was added on July 4, 1851, not on the statehood date, and the resulting star count remained official through July 3, 1858. The admission date is recorded in the U.S. Senate’s California timeline; the July addition followed the national flag’s established schedule.

California’s rapid move toward statehood was tied to events at the end of the Mexican-American War and the discovery of gold in 1848. The Treaty of Guadalupe Hidalgo brought California under United States control, while the gold discovery drew a surge of migrants. The National Park Service’s California National Historic Trail history connects these developments with admission in 1850. The state constitution was drafted in 1849, and the signed parchment survives in the California State Archives. State formation was therefore already under way before the thirty-first star appeared.

California’s request to enter as a free state intensified an existing national struggle over slavery in western lands. Its admission became part of the Compromise of 1850, a group of measures that also organized Utah and New Mexico territories, addressed Texas’s boundary, ended the slave trade in Washington, D.C., and strengthened the Fugitive Slave Act. The National Archives presents the legislation and its context. The compromise addressed an immediate political crisis without ending the deeper conflict. The thirty-first star consequently belongs to a history of both geographic growth and mounting sectional tension.

Thirteen stripes continue to recall the original states, while thirty-one stars identify this stage of the enlarged Union. This is a historical United States flag, not California’s Bear Flag. Its seven-year official period ended after Minnesota became the thirty-second state on May 11, 1858, with the next flag change following on July 4. The Senate’s Minnesota timeline verifies that admission. Read in sequence, the thirty-one-star design connects California’s statehood with the national flag history of the 1850s without claiming that this reproduction copies a particular surviving artifact.

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