1846 was a common year starting on Thursday (see link for calendar).

Events

• January 5 - The United States House of Representatives votes to stop sharing the Oregon Territory with the United Kingdom
• February 5 - The Oregon Spectator becomes the first newspaper on the Pacific coast of the United States.
• February 10 - Many Mormons begin their migration west from Nauvoo, Illinois to Great Salt Lake led by Brigham Young
• February 19 - In Austin, Texas the newly-formed Texas state government is officially installed.
• March 10 - Prince Osahito, fourth son of deceased Emperor Ninko of Japan, becomes Emperor Komei of Japan.
• April 25 - Mexican-American War: Open conflict begins over border disputes of Texas' boundaries.
• April 27 - The first arrival of a train to Celje.
• May 8 - Mexican-American War: The Battle of Palo Alto - Zachary Taylor defeats a Mexican force north of the Rio Grande at Palo Alto, Texas in the first major battle of the war.
• May 13 - Mexican-American War: The United States declares war on Mexico.
• May 17 - The Saxophone is patented by Adolphe Sax
• June 10 - Mexican-American War: The California Republic declares independence from Mexico.
• June 10 - Grinnell College: The first American college or university to the West of the Mississippi River is founded.
• June 14 - Bear Flag Revolt begins - American settlers in Sonoma, California start a rebellion against Mexico and proclaim the California Republic.
• June 15 - The Oregon Treaty establishes the 49th parallel as the border between the United States and Canada, from the Rocky Mountains to the Strait of Juan de Fuca.[1]
• June 21 - Pope Pius IX ascends to the Holy See.
• July 7 - Acting on instructions from Washington, DC, Commodore John Drake Sloat orders his troops to occupy Monterey and Yerba Buena thus beginning the United States annexation of California.
• August 14 - The Cape Girardeau meteorite, a 2.3 kg chondrite type meteorite struck earth 7.5 miles (12 km) south of the town of Cape Girardeau in Cape Girardeau County, Missouri.
• September 23 – Neptune discovered by German astronomers Johann Gottfried Galle and Heinrich Louis d'Arrest, although the planet did not get its current name for many years.
• December 28: Iowa is admitted as the 29th U.S. state.

• The portion of the District of Columbia that was ceded by Virginia in 1790 is re-ceded to Virginia.
• Potato crop fails in Ireland
• Electric Telegraph Company founded in Britain
• Liberia declares independence as a republic
• Elias Howe patents the sewing machine

Ongoing events

• Mexican-American War (1846-1848)

Births

• February 9 - Wilhelm Maybach, designer of engines and cars, industrialist (+ 1929)
• February 18 - Wilson Barrett, actor
• February 26 - Buffalo Bill, pioneer and officer, hunter and carny (+ 1917)
• April 4 - Comte de Lautreamont, French poet and writer. (+ 1870)
• May 5 - Henryk Sienkiewicz, author, recipient of the Nobel Prize in literature 1905 (d. 1916)
• May 25 - Princess Helena of the United Kingdom, third daughter of Queen Victoria
• November 25 - Carrie Nation, advocate of temperance movement.

Deaths

• June 1 - Pope Gregory XVI
• June 8 - Rodolphe Töpffer, Swiss teacher, author, painter and caricature artist. He is also considered to be the first modern comic creator.
• November 6 - Karol Marcinkowski, Polish physician and social activist (b. 1800)

• Emperor Ninko of Japan