18th February » Bulgarian revolutionary leader Vasil Levski is executed by hanging in Sofia by the Ottoman Empire called Ottoman authorities.
20th February » The University of California opens its first medical school in San Francisco, California.
1st March » E. Remington and Sons in Ilion, New York begins production of the first practical typewriter.
3rd March » Censorship in the United States: The U.S. Congress enacts the Comstock Law, making it illegal to send any "obscene, lewd, or lascivious" books through the mail.
22nd March » A law is approved by the Spanish National Assembly in Puerto Rico to abolish slavery.
1st April » The White Star Line called White Star steamer RMS known as Atlantic sinks off Nova Scotia, killing 547 in the worst marine disaster of the 19th century.
4th April » The Kennel Club is founded, the oldest and first official registry of purebred dogs in the world.
13th April » The Colfax massacre, in which more than 60 African Americans are murdered, takes place.
9th May » 'Panic of 1873 e.g Der Krach': Vienna stock market crash heralds the Long Depression.
20th May » Levi Strauss and Jacob Davis (inventor) called Jacob Davis receive a U.S. patent for blue jeans with copper rivets.
23rd May » The Canada named Canadian Parliament establishes the North-West Mounted Police, the forerunner of the Royal Canadian Mounted Police.
9th June » Alexandra Palace in London burns down after being open for only 16 days.
18th June » Susan B. Anthony is fined $100 for attempting to vote in the United States presidential election, 1872 named 1872 presidential election.
1st July » Prince Edward Island joins the Canadian Confederation.
21st July » At Adair, Iowa, Jesse James and the James-Younger Gang pull off the first successful train robbery in the American Frontier named American Old West.
4th August » American Indian Wars: While protecting a Rail transport railroad survey party in Montana, the 7th Cavalry Regiment (United States) United States 7th Cavalry, under Lieutenant colonel (United States) Lieutenant Colonel George Armstrong Custer clashes for t
23rd August » Albert Bridge, London e.g Albert Bridge in Chelsea, London opens.
30th August » Austrian explorers Julius von Payer and Karl Weyprecht discover the archipelago of Franz Josef Land in the Arctic Sea.
1st September » Cetshwayo ascends to the throne as king of the Zulu Kingdom or Zulu nation following the death of his father Mpande.
7th September » Emilio Castelar y Ripoll becomes President of the First Spanish Republic.
15th September » Franco-Prussian War: The last German troops leave France upon completion of payment of indemnity.
18th September » Panic of 1873: The U.S. bank Jay Cooke & Company declares bankruptcy, triggering a series of bank failures.
24th September » Establishment of "Satyashodhak Samaj", (Truth-seeker Movement) at Pune, Maharashtra, India by Mahatma Jyotirao Phule.
3rd October » Kintpuash or Captain Jack and companions are hanged for their part in the Modoc War.
9th October » A meeting at the U.S. Naval Academy establishes the U.S. Naval Institute.
20th October » Yale University Yale, Princeton University Princeton, Columbia University Columbia, and Rutgers University Rutgers universities draft the first code of American football rules.