1840s
Centuries
:
18th century
-
19th century
-
20th century
Decades
:
1810s
1820s
1830s
-
1840s
-
1850s
1860s
1870s
Years:
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
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Events and Trends
First signing of the
Treaty of Waitangi
(Te Tiriti o Waitangi) on
February 6
,
1840
at
Waitangi
New Zealand
. The treaty between the
British Crown
and
Maori
made New Zealand a British
colony
and is considered the founding point of modern New Zealand.
Introduction of the
postage stamp
. The first of them is
Penny Black
, issued by the
United Kingdom
on
May 1
,
1840
.
Mexican-American War
(
1846
-
1848
) fought between
Mexico
and the
United States of America
. The later emerges victorious and gains undisputed control over
Texas
while annexing portions of
Arizona
,
California
and
New Mexico
.
Wave of
revolutions
in
Europe
. Collectively known as the
Revolution of 1848
.
Karl Marx
writes
The Communist Manifesto
, first published on
February 21
,
1848
.
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World Leaders
Emperor
Ferdinand I
(
Austria
)
Chancellor
Klemens Wenzel von Metternich
(
Austria
)
Emperor
Franz Josef
(
Austria-Hungary
)
King
Louis-Philippe
(
France
)
Pope Gregory XVI
Pope Pius IX
Emperor
Nicholas I
(
Russia
)
Queen
Victoria
(
United Kingdom
)
Prime Minister
Lord Melbourne
(
United Kingdom
)
Prime Minister Sir
Robert Peel
(
United Kingdom
)
Prime Minister
Lord John Russell
(
United Kingdom
)
President
Martin Van Buren
(
United States
)
President
John Tyler
(
United States
)
President
James Knox Polk
(
United States
)