Sovereign states
A
B
C
Cook Islands Rarotonga
D
E
F
G
H
J
K
L
M
N
O
P
- Pahang – Sultanate of Pahang
- Papal States – States of the Church
- Paraguay – Republic of Paraguay
- Parma – Duchy of Parma, Piacenza and Guastalla (to December 8, 1859)
- Perak – Sultanate of Perak
- Persia – Sublime State of Persia
- Peru – Peruvian Republic
- Portugal – Kingdom of Portugal
- Prussia – Kingdom of Prussia
Q
- Qu'aiti – Qu'aiti Sultanate of Shihr and Muqalla in Hadramaut
R
S
South African Republic Transvaal
- Spain – Kingdom of Spain
- Sulu – Sultanate of Sulu
- Sweden – Kingdom of Sweden (in personal union with Norway)
- Switzerland – Swiss Confederation
T
U
V
W
Y
- Yeke – Yeke Kingdom (from 1856)
Z
Non-sovereign territories
Oldenburg
United Kingdom
States claiming sovereignty
|
Preceded by 1840s
|
Political entities in the 1850s
|
Succeeded by 1860s
|
References