C

• [+] Companies established in 1821 (2 C, 6 P)

E

• [+] Educational institutions established in 1821 (19 P)

M

• [+] Military units and formations established in 1821 (2 C, 4 P)

M cont.

• [+] Musical groups established in 1821 (1 P)

O

• [+] Organizations established in 1821 (4 C)

P

• [+] Publications established in 1821 (6 P)

R

• [+] Religious organizations established in 1821 (10 P)

S

• [+] Settlements established in 1821 (28 P)
• [+] States and territories established in 1821 (14 P)

A

• American Legation, Tangier

B

• Boston Brigade Band

D

• Danbury Fair

E

• Earl of Eldon
• Eton Excelsior Rowing Club

F

• Florida Department of Corrections

G

• George Washington University Medical School

H

• Hospital for Tropical Diseases

K

• Konzerthaus Berlin

M

• Maine's 4th congressional district

M cont.

• Millbank Prison
• Morristown (town), New York

N

• National Museum of Slovenia

O

• Oxford and Cambridge Club

P

• Pike County, Illinois
• Political Economy Club

R

• Roman Catholic Archdiocese of Freiburg
• Royal Birmingham Society of Artists
• Royal Scottish Society of Arts

S

• Saint Sava College

S cont.

• Seamen's Hospital Society
• Singapore General Hospital
• Slovenian Museum of Natural History
• Société de Géographie
• Spa Fields

T

• Tallaght Hospital

U

• United University Club

V

• Vermont's 5th congressional district