A

• [×] 1850 in Austria‎ (empty)
• [×] 1850 in the Austrian Empire‎ (empty)
• [+] 1850s in the Austrian Empire‎ (10 C)

B

• [×] 1850 in Belgium‎ (empty)
• [×] 1850 in Bulgaria‎ (empty)

D

• [×] 1850 in Denmark‎ (empty)

E

• [×] 1850 in England‎ (empty)

F

• [×] 1850 in France‎ (empty)

G

• [×] 1850 in Germany‎ (empty)

H

• [×] 1850 in Hungary‎ (empty)

I

• [×] 1850 in Italy‎ (empty)

O

• [×] 1850 in the Ottoman Empire‎ (empty)

R

• [×] 1850 in Romania‎ (empty)
• [×] 1850 in Russia‎ (empty)

S

• [×] 1850 in Sweden‎ (empty)

U

• [+] 1850 in the United Kingdom‎ (1 C)