11. Twenty-Nine Star U.S. Flag
> Years flown: 1847 ~ 1848
> Who was president: James Polk (1845-1849)
Iowa was admitted to the Union on Dec. 28, 1846, as a free state to maintain the balance between free and slave states during the antebellum period. Its star was added to the U.S. flag the following July 4. Originally part of the Louisiana Purchase, Iowa grew dramatically because of its rich farmland. Iowa had been established as a U.S. territory in 1838.
12. Thirty-Star U.S. Flag
> Years flown: 1848 ~ 1851
> Who was president: James Polk (1845-1849), Zachary Taylor (1849-1850),and Millard Fillmore (1850-1853)
Wisconsin became a state on May 29, 1848, adding the 30th star to the U.S. flag less than two months later. Not all residents of Wisconsin were enthusiastic about statehood. They had rejected it four times previously because they were concerned statehood would mean higher taxes.
13. Thirty-One Star U.S. Flag
> Years flown: 1851 ~ 1858
> Who was president: Millard Fillmore (1850-1853), Franklin Pierce (1853-1857), and James Buchanan (1857-1861)
The Gold Rush that began with the discovery of the precious metal in 1848 helped fast-track California to statehood in 1850. California became the 31st star on the American flag the following July 4. The admission of California fulfilled America’s manifest destiny of a nation extending from sea to sea.
14. Thirty-Two Star U.S. Flag
> Years flown: 1858 ~ 1859
> Who was president: James Buchanan (1857-1861)
On the eve of the Civil War, Minnesota was admitted to the Union on May 11, 1858, and represented as the 32nd state on the flag less than two months later. Minnesota was admitted as a free state.
15. Thirty-Three Star U.S. Flag
> Years flown: 1859 ~ 1861
> Who was president: James Buchanan (1857-1861) and Abraham Lincoln (1861-1865)
America’s expansion surged to the Northwest with the admission of Oregon on Feb. 14, 1859, adding a 33rd star to the flag the following July. Oregon, which had become a U.S. territory in 1848, was admitted as a free state, though its first two senators, Joseph Lane and Delazon Smith, were proslavery Democrats.