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Wikimedia Commons has media related to 1820s by country.
Subcategories
This category has the following 124 subcategories, out of 124 total.
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0–9
A
B
- 1820s in Bremen (empty)
C
D
E
F
G
H
I
J
L
- 1820s in Laos (1 P)
M
N
O
P
R
S
- 1820s in Sudan (1 P)