* Robert was born on 16 October 1803 and married Frances Sanderson, daughter of a City of London professional John Sanderson, on 17 June 1829.

Both George and their second son, John ( 1803 – 1834 ), led troubled lives and died in early adulthood.

When Audubon, at age 18, boarded ship for emigration to the United States in 1803, he changed his name to an anglicized form: John James Audubon.

* John Brown ( Rhode Island ) ( 1736 – 1803 ), U. S. representative ( F – RI, 1799 – 1801 ), co-founder of Brown University

* John Newton Brown ( 1803 – 1868 ), Baptist teacher, minister and publisher

His parents were unable to afford Eton or Harrow, so in the summer of 1803 he was sent to board at John Clarke's school in Enfield, close to his grandparents ' house.

* John Walker ( natural historian ) ( 1731 – 1803 ), Scottish naturalist

The law of definite proportions contributed to, and was placed on a firm theoretical basis by, the atomic theory that John Dalton promoted beginning in 1803, which explained matter as consisting of discrete atoms, that there was one type of atom for each element, and that the compounds were made of combinations of different types of atoms in fixed proportions.

* 1803 – English scientist John Dalton begins using symbols to represent the atoms of different elements.

The presidential authority to commission officers would have a large impact on the 1803 case Marbury v. Madison, where outgoing Federalist President John Adams feverishly signed many commissions to the judiciary on his final day in office, hoping to, as incoming Democratic-Republican President Thomas Jefferson put it, " into the judiciary as a stronghold.

This led John Dalton to resurrect Democritus ' atom in 1803, when he proposed that elements were invisible sub components ; which explained why the varying oxides of metals ( e. g. stannous oxide and cassiterite, SnO and SnO < sub > 2 </ sub > respectively ) possess a 1: 2 ratio of oxygen to one another.

* John Wordsworth ( 18 June 1803 – 1875 ).

* March 8 – John Ericsson, Swedish inventor and engineer ( b. 1803 )

Fort Dearborn was constructed by United States troops under the command of Captain John Whistler in 1803.

The atomic weight scale has traditionally been a relative scale, that is without an explicit unit, with the first atomic weight basis suggested by John Dalton in 1803 as < sup > 1 </ sup > H.

Clay and his wife had eleven children ( six daughters and five sons ): Henrietta ( 1800 – 1801 ), Theodore ( 1802 – 1870 ), Thomas ( 1803 – 1871 ), Susan ( 1805 – 1825 ), Anne ( 1807 – 1835 ), Lucretia ( 1809 – 1823 ), Henry, Jr .( 1811 – 1847 ), Eliza ( 1813 – 1825 ), Laura ( 1815 – 1817 ), James Brown ( 1817 – 1864 ), and John ( 1821 – 1887 ).

In the 19th century, the architect John Shaw Jr ( 1803 – 1870 ) became surveyor to Eton.

He won the by-election for U. S. Senator from New York after the resignation of John Armstrong, Jr. and served from February 23, 1802, to November 4, 1803.

* 1803 John Dalton introduces atomic ideas into chemistry and states that matter is composed of atoms of different weights

Elizabeth and Jérôme Bonaparte were married on December 24, 1803, at a ceremony presided over by John Carroll, the Archbishop of Baltimore.

The party was transferred to the fledgling settlement of Hobart, founded by Lieutenant John Bowen as a penal colony at Risdon Cove in September 1803.

Forbes ( 1809 – 1868 ), A. T. Malkin ( 1803 – 1888 ), John Ball ( 1818 – 1889 ), and Sir Alfred Wills ( 1828 – 1912 ).

* John Alexander Kennedy ( 1803 – 1873 ), law-enforcement administrator

An early proponent of this idea was John Quincy Adams, a leading figure in U. S. expansion between the Louisiana Purchase in 1803 and the Polk administration in the 1840s.

It was named for John Stanly of New Bern ( 1774 – 1834 ), who served several terms in the North Carolina House of Commons and two terms ( 1801 – 1803, 1809 – 1811 ) in the United States House of Representatives.

In the two or three years following the reading of these essays, Dalton published several papers on similar topics, that on the absorption of gases by water and other liquids ( 1803 ), containing his law of partial pressures now known as Dalton's law.

John Dalton lectured on his atomic theory at the Literary and Philosophical Society in 1803.

This idea was proposed as early as 1803, by Jefferson, but was not used in actual treaties until 1817, when the Cherokee agreed to cede two large tracts of land in the east for one of equal size in present-day Arkansas.

Later, as president, Jefferson proposed in private letters beginning in 1803 a policy that under Andrew Jackson would be called Indian removal, under an act passed in 1830.

The draft constitution with this proviso was accepted by the United States Congress, but before Ohio's admission to the Union in February 1803, the proposed constitution was referred to a Congressional committee.

The Twelfth Amendment was proposed by the Congress on December 9, 1803, and was ratified by the required number of state legislatures on June 15, 1804.

The Congress proposed the Twelfth Amendment on December 9, 1803, and the following states ratified the amendment:

That this was insufficient incentive is revealed in a report on proposed changes to the RN Admiral Nelson wrote in 1803 ; he noted that since 1793 more than 42, 000 sailors had deserted.

Responding to the problems from those elections, the Congress proposed the Twelfth Amendment in 1803 — prescribing electors cast separate ballots for President and Vice President — to replace the system outlined in Article II, Section 1, Clause 3.

In 1803, Governor Caleb Strong chartered the Newburyport Turnpike Corporation, a profit-making venture that proposed building a toll road straight from Newburyport through Topsfield to Boston.

In 1803, he and several other New England politicians proposed secession of New England from the union due to growing influence of Jeffersonian democrats and the Louisiana Purchase which they felt would further diminish Northern influence.

There is speculation that the Congress proposed the amendment in response to the 1803 marriage of Napoleon Bonaparte's younger brother, Jerome, and Betsy Patterson of Baltimore, Maryland, who gave birth to a boy for whom she wanted aristocratic recognition from France.

George Bass made the Dunedin end of the harbour the north east limit of his proposed fishing monopoly in 1803.

The name Jefferson ( in honor of Thomas Jefferson, the third President of the United States who had authorized the 1803 Louisiana Purchase that included much of the proposed territory ) was chosen and a constitutional convention was scheduled for June 6, 1859.

In 1803 American ship captains already involved in the sea otter Maritime Fur Trade in California proposed several joint venture hunting expeditions to Alexander Andreyevich Baranov, on half shares using Russian supervisors and native Alaskan hunters to hunt fur seals and otters along the Alta and Baja Californian coast.

Further proposals were made in the early 19th century, with schemes being proposed in 1801, 1802, 1803 and 1811, but none of these came to pass and as a result the first link to the sea was via a branch of the Portsmouth and Arundel Canal opened in 1822.

In 1803 during the Qing Dynasty a local man named He Xiande and his wife proposed the construction of a replacement, made of wooden plates and bamboo handrails, to span both streams and this was nicknamed Couple ’ s Bridge in their honour.

In 1803, Plumer was one of several New England Federalists who proposed secession from the United States due to lack of

In 1803, he and several other New England politicians proposed secession of New England from the union due to growing influence of

Troup wanted to move them to the Western Territory of the Louisiana Purchase, an idea first proposed by Thomas Jefferson in 1803.