* 1834 – Slavery is abolished in the British Empire as the Slavery Abolition Act 1833 comes into force.

The abolition of slavery in 1834 enabled Dominica by 1838 to became the only British Caribbean colony to have a Black-controlled legislature in the 19th century.

The museum focuses on the period from 1714 to 1834 when Hanover had a strong relationship with the British royal house.

After the British crown abolished slavery in 1834, the Jamaicans began working toward independence.

The results of these inquiries contributed greatly to the abolition of slavery as of August 1, 1834, throughout the British Empire.

He ended slavery in Upper Canada long before it was abolished in the British Empire as a whole – by 1810 there were no slaves in Upper Canada, but the Crown did not abolish slavery throughout the Empire until 1834.

* 1834 – Lord Acton, British historian ( d. 1902 )

* 1834 – George du Maurier British illustrator and writer ( d. 1896 )

* 1759 – William Wyndham Grenville, 1st Baron Grenville, British politician and Prime Minister of the United Kingdom ( d. 1834 )

On 17 November 1834, the British amateur astronomer the Reverend Thomas John Hussey reported a conversation he had had with French astronomer Alexis Bouvard to George Biddell Airy, the British Astronomer Royal.

This violent phase of the region's history culminated in a series of events in which the British overcame the indigenous people, including the execution of the Whadjuk elder Midgegooroo, the death of his son Yagan in 1833, and the Battle of Pinjarra in 1834.

The Rosetta Stone was transferred to the sculpture gallery in 1834 shortly after Montagu House was demolished and replaced by the building that now houses the British Museum.

In 1834, the British Parliament passed the South Australia Act 1834 ( Foundation Act ), which enabled the province of South Australia to be established.

Slavery was abolished in the British Empire in 1834.

Decades after the success of the Haitian Revolution, the British abolished slavery in 1834.

While the British colonies had no slavery after 1834, discrimination was still common.

In 1834, Parliament ended the monopoly of the British East India Company on trade between Britain and China.

In 1834, working with the Chief Superintendent of Trade representing the British Empire, William, Lord Napier, tried unsuccessfully to negotiate with the Chinese officials in Canton.

* October 8 – George du Maurier, French-born British cartoonist and writer ( b. 1834 )

** The British Parliament passes the Slavery Abolition Act, giving all slaves in the British Empire their freedom ( enacted 1834 ).

* April 4 – John Venn, British mathematician ( b. 1834 )

* August 9 – Thomas Telford, British engineer & architect ( d. 1834 )

* 1752 – Joseph Marie Jacquard, French inventor and merchant, invented the Jacquard loom ( d. 1834 )

* 1834 – Johann Philipp Reis, German physicist and inventor ( d. 1874 )

* 1834 – Gottlieb Daimler, German engineer and inventor ( d. 1900 )

On 1834, in Campinas, Brazil, Hercules Florence, a French painter and inventor, wrote in his diary the word " photographie " to describe his process.

** Gottlieb Daimler, German inventor and automotive pioneer ( b. 1834 )

* July 7 – Joseph Marie Jacquard, French inventor ( d. 1834 )

* Walter B. Woodbury ( 1834 – 1885 ), British inventor and pioneering photographer

**** John Venn ( 1834 – 1923 ), British logician and the inventor of Venn diagrams, son of Henry Venn the younger

* Rudolph Ackermann ( 1764 – 1834 ), German-born English publisher, printer, and inventor

Samuel Pierpont Langley ( August 22, 1834, Roxbury, Massachusetts – February 27, 1906, Aiken, South Carolina ) was an American astronomer, physicist, inventor of the bolometer and pioneer of aviation.

George E. Clymer ( 1754 – 1834 ) from Philadelphia, Pennsylvania was an American statesman, mechanic and inventor.

Charles Knight is considered to be the first person to propose the use of stamped newspaper wrappers in 1834, so stands as their " inventor ".

Rudolph Ackermann (* 20 April 1764 in Stollberg, Electorate of Saxony, Germany ; † 30 March 1834 in London ) was an Anglo-German bookseller, inventor, lithographer, publisher and businessman.

Johann Philipp Reis ( January 7, 1834 – January 14, 1874 ) was a self-taught German scientist and inventor.

Henry Sargent, the inventor, presented it as a wonder that people from Boston would flock to and " that his invention would make the island a centre of attraction to many people " The company allowed this to be built on its land and it was an attraction for nine days in 1834 and then was closed because of lack of ridership.

* January 24-Johann Philipp Reis ( born 1834 ), physicist and inventor.

* July 7-Joseph Marie Jacquard, French inventor ( died 1834 )

* November 6-Alois Senefelder ( died 1834 ), inventor of lithography.

* May 18-Lionel Lukin, English inventor ( died 1834 ).

* Johann Philipp Reis, inventor of one of the first telephones, born January 7, 1834 at Gelnhausen, died 14 January 1874 at Friedrichsdorf

Lionel Lukin ( 18 May 1742 ( Great Dunmow, Essex, England )-16 February 1834 ( Hythe, Kent, England ) is considered by some to have been the inventor of the lifeboat ( although see William Wouldhave for the competing claim ).

Lukin died at Hythe in Kent in 1834, having become a successful and well respected coach builder and inventor.

Sir William Henry Preece ( 15 February 1834 – 6 November 1913 ) was a Welsh electrical engineer and inventor.

The roots of International Harvester run to the 1830s, when Cyrus Hall McCormick, an inventor from Virginia, finalized his version of a horse-drawn reaper, which he field-demonstrated throughout 1831, and for which he received a patent in 1834.