The US held its first poultry show at Boston's Public Garden.
Author Edgar Allan Poe was last seen alive. He was disorientated, lying in a gutter in Baltimore, Maryland, US.
Austria launched pilotless balloons against the city of Venice, which became the first air raid in history.
Abraham Lincoln received a patent for a device that would lift a boat over shoals and obstructions.
Walter Hunt patented the safety pin.
Zachary Taylor is inaugurated as the twelfth President of the United States.
A photograph was taken of the 11th US President, James Knox Polk.
President James K. Polk confirmed a gold discovery.
The first WHSmith railway bookstore opened at London Euston Railway Station, London, UK.
A new federal constitution was created, which marked Switzerland as a federal state.
Congress created the Oregon Territory, which included Oregon, Washington, Idaho, and Western Montana.
The Free Soil Party was formed by 465 delegates in Buffalo.
The Seneca Falls Convention became the first-ever US women's rights convention.
Wisconsin became the 30th state to join the United States of America.
The first German National Assembly gathers in Frankfurt.
Niagara Falls waterfall stopped flowing due to an ice jam.
The first major revolt of the 1848-1849 German revolutions began in Vienna.
Karl Marx and Friedrich Engels publish 'The Communist Manifesto'.
The California Gold Rush begins.
The romantic comedic opera 'Marta' premiered in Vienna by Jules-Henri Vernoy de Saint-Georges.
The English writer Charlotte Bronte's novel 'Jane Eyre' was published by Smith, Elder & Co.
The country of Liberia is founded.
Brigham Young and 148 Mormon pioneers entered Salt Lake Valley and founded Salt Lake City.
The first US postage stamps were issued.
Telegraph wires linked new York and Boston.
Felix Mendelssohn's Wedding March is used at a wedding for the first time.
The American Medical Association was formed.
The Death Penalty was abolished in the state of Michigan, except for treason.
Samuel Colt sells his first revolver.
Iowa became the 29th state to join the United States of America.
British astronomer William Lassell discovered Neptune's largest moon, Triton.
Anesthetic was used for the first time on a dental patient by Dr. William Morton.
Inventor Elias Howe was awarded the patent for the lockstitch sewing machine.
The saxophone is patented.
The longest papal reign began when Pope Pius IX was elected.
Baltimore and Philadelphia were linked up by telegraph.
US President James K. Polk asked Congress to declare war on Mexico.
The Thornton Affair, a skirmish between American and Mexican soldiers in Texas, started a chain of events that led to the Mexican-American War.
The first Mormon Pioneers left their homes in Nauvoo, Illinois, and began the long trek to the Salt Lake Valley.
Texas became the 28th state to join the United States of America.
Anesthesia used for the first time for childbirth.
The citizens of Texas accepted the new constitution and approved the annexation ordinance.
Chemist Michael Faraday discovered the Faraday Effect.
First Issue of Scientific American hits the newsstands.
Felix Mendelssohn's Violin Concerto is premiered.
Florida became the 27th state to join the United States of America.
A glass treasure vase that dated back to between 1 – 25 AD was smashed by a drunk man.
The New York Evening Mirror published Edgar Allan Poe's famous poem 'The Raven.'
The Great Auks go extinct.
The founder of the Mormons, Joseph Smith Jr., was murdered by a mob at the Carthage, Illinois jail.
