Category:1840

• 1840 by city (2 K)
• 1840 by continent (10 K)
• 1840 by country (68 K, 20 P)

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• 1840-related lists (1 P)

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• 1840 beginnings (5 K)
• 1840 endings (3 K)

A

• 1840 in the arts (7 K)

C

• 1840 censuses (1 P)
• 1840 conferences (3 P)
• 1840 crimes (4 K)

D

• 1840 disasters (6 K)

E

• 1840 in economic history (3 K)
• 1840 in education (2 K)
• 1840 in the environment (3 K)
• 1840 events by month (12 K)

F

• 1840 festivals (1 P)
• Fiction set in 1840 (1 K, 8 P)

H

• 1840 in health (1 K)

L

• 1840 in law (7 K, 2 P)

M

• 1840 in mass media (1 K)
• 1840 meteorology (1 P)
• 1840 in military history (3 K)

P

• 1840 in politics (11 K)

R

• 1840 in religion (4 K)

S

• 1840 in science (7 K, 6 P)
• 1840 in sports (6 K, 2 P)

T

• 1840 in transport (6 K, 2 P)

W

• 1840 works (13 K, 8 P)