Flag Dates: by month (original) (raw)

Unknown

Sweden

First use as a battle flag - 1569

Netherlands

First use of the flag - 1581

Sweden

Use as a naval flag 1620s

Denmark

Flag adopted 1625

Netherlands

1630-1660 - orange stripe becomes red

Sweden

1663 - warrant on use of flags at sea

Russia

1693 - First use as a naval ensign

Denmark

Specifications on dimensions specified - 1748

United States

Two stars and two stripes added to flag in 1795

France

Colors standardized 1804

France

Colors standardized 1812

El Salvador

Flag adopted 1822

Peru

Flag adopted 1825

Poland

flag constituted by Polish parliament 1831 following November uprising (modeled on the flag of the Grand Duchy of Warsaw)

Greece

Flag adopted 1832

Romania

Flag first authorized by Ottoman sultan 1834

Tunisia

Flag adopted 1835

El Salvador

Minor modifications to flag - 1841

Haiti

Flag current pattern adopted 1843

Turkey

flag in use since 1844 (ref: Ottoman Empire)

Costa Rica

Flag adopted 1848

Hungary

Flag adopted during the 1848-49 uprising

Hungary

First law about flag in Constitution - 1848

Haiti

flag reconfirmed - 1849

Hungary

Flag in disuse during Austrian period 1849-1867

Haiti

arms on flag changed - 1859

Romania

Horizontal version of the flag adopted 1859

Haiti

circa 1860 - blue-red bicolor in use

Poland

1863 - 1831 flag with arms used during Polish revolt

Andorra

Adopted 1866

Romania

Vertical version of the flag adopted 1866

Hungary

Flag restored 1867

Venezuela

Minor modification 1867

Panama

Provisionally approved 1904

Albania

Flag Adopted 1912 modeled on the flag of Iskander Bey

Taiwan

Flag adopted as naval ensign - 1914

Armenia

Adopted 1918; disuse during Soviet era

Azerbaijan

Adopted 1918; disuse during Soviet era

Lithuania

Flag adopted 1918 (in disuse during Soviet era)

Albania

Flag changed with a redesigned double headed eagle - 1920

Panama

Flag officially approved 1925

Nepal

First Nepali flag adopted 1928

Afghanistan

Current pattern (Black-Red-Green vertical bars) adopted between September 1928 and January 1929

Afghanistan

1929 - Black-Red-Green motif restored after period of disuse

Venezuela

Star pattern redesigned 1930

Bahrain

Serrated flag adopted 1933

Albania

Color of flag background changed - 1934

Mongolia

Flag adopted 1940 (socialist version)

Albania

Postwar flag adopted - 1944

Faroe Islands

Flag recognized by Denmark - 1948

Romania

Arms of People's Republic of Romania added to flag 1948

Hungary

R�skosi arms on flag - 1949-1956

Hungary

Constitution modified regarding flag - 1949

Korea, Republic of

Defacto use of the flag, 1950 (from older flag)

Puerto Rico

Flag adopted for use by Commonwealth 1952

Romania

New arms of People's Republic of Romania added to flag 1952

Venezuela

Venezuelan flag law passed 1954 regulating flag

British Virgin Islands

Flag adopted - 1956

Morocco

Flag adopted by decree - 1956

Hungary

Basic flag restored 1957

Netherlands

Colors defined - 1958

Nigeria

Flag selected (pre-independence) 1959

Guam

Red border added around flag 1960

Trinidad and Tobago

Flag adopted 1962

Syria

Reverted to original pattern with three green stars 1963 (following coup d'�tat

Bhutan

Flag adopted 1969

Afghanistan

circa 1973 - flag modified to eliminate Arabic numerals; replaced and in disuse as of 9 May 1974

East Timor

Self-proclaimed independence flag 1975

Norfolk Island

1980 - Official approval by Australian Governor-General and Queen Elizabeth II

Poland

1980 - Minor modification to flag (People's Republic of Poland)

Syria

previous flag readopted 1980

Northern Mariana Islands

Design modified 1985

Paraguay

ratio changed 1988

Northern Mariana Islands

Modified 1991

Paraguay

Apparent change to flag circa 1991

�land Islands

proportions standardized - 1992

Turkmenistan

Flag adopted 1992

Czech Republic

Flag adopted 1993, using the former flag of Czechoslovakia, originated on 30 March 1920

Hungary

Flag legislated regarding use - 1995

Puerto Rico

Colors standardized - 1995

Zambia

Flag specifications changed 1996

British Virgin Islands

Size of badge modified - 1999

Cayman Islands

Badge modified on flag 1999

Turks and Caicos

Badge modified in 1999

Hungary

Ratio set for flag and pole sizes 2000

Cocos (Keeling) Islands

Flag adopted 2003 (unofficial)

January

United Kingdom

Flag adopted 1 January 1801 adding "St. Patrick's Cross" to the flag of the United Kingdom of England and Scotland

Mexico

Flag decreed in December 1880 becomes effective 1 January 1881

Mexico

New emblem placed on flag 1 January 1889

Italy

Official date of flag use - 1 January 1948

Syria

Federation of Arab Republics formed, stars replaced by golden Quraish eagle

Norfolk Island

Flag adopted 1 January 1980

Palau

Flag adopted 1 January 1981

Netherland Antilles

Adopted 1 January 1986

Myanmar

Flag adopted 3 January 1974

Afghanistan

Black-Red-Green motif restored 4 January 2004

Seychelles

Flag legislated 8 January 1996

Honduras

Flag adopted 9 January 1866

Mauritius

Flag adopted 9 January 1968

Bangladesh

Adopted 13 January 1972

Iraq

Takbir added to flag 13 January 1963

Georgia

Flag adopted 14 January 2004

Norfolk Island

Flag official 17 January 1980

Russia

Adopted as Merchant ensign 20 January 1705 (disuse during Soviet era)

Lesotho

Flag adopted 20 January 1987

Belgium

Adopted 23 January 1831

Turkmenistan

design modified 24 January 2001

Korea, Republic of

Flag adopted 25 January 1950

Montserrat

Badge modified on flag 25 January 1999

Christmas Island

Official adoption of flag 26 January 2006

Belgium

Flag reconfirmed - 28 January 1936

Ukraine

Flag adopted 28 January 1992

Turkmenistan

Olive branch added to flag 29 January 1997

Nauru

Flag adopted 21 January 1968

February

Belize

Flag adopted 2 February 1950 from the design of People's Unity Party

Belgium

Order of colors specified by Minister of Navy - 4 February 1831

Bosnia and Herzegovina

Adopted 4 February 1998

Mexico

New emblem placed on flag 5 February 1934

Azerbaijan

Readopted, 5 February 1991

Ethiopia

Flag adopted 6 February 1996

Grenada

Flag adopted 7 February 1974

Mexico

Flag reconfirmed 8 February 1984

Sri Lanka

Flag legislated in constitution 8 February 2000

Guam

Flag accepted by Guam congress 9 February 1948

Poland

New law on the Polish flag - 9 February 1990

Finland

Colors slightly modified - 12 February 1920

Mongolia

Socialist star removed 12 February 1992

South Georgia and the South Sandwich Islands

Coat of arms introduced 14 February 1992

Bahrain

Flag serrations modified 14 February 2002

France

Flag adopted 15 February 1794

Canada

Flag proclaimed by Queen Elizabeth II, 15 February 1965

Hong Kong

Flag adopted (pre-transfer) - 16 February 1990

Haiti

Flag restored 17 February 1986

Gambia

Flag adopted and hoisted 18 February 1965

Vanuatu

Flag adopted 18 February 1980

Slovakia

Specifications issued 18 February 1993

Congo, Democratic Republic of

New symbols and arms legislated 16 February 2006

Netherlands

Colors regulated by royal decree and official adoption of flag - 19 February 1937

Venezuela

Codification of flag 19 February 1954 ????

Australia

20 February 1903 - Flag approval announced by King Edward VII

Korea, Republic of

Change to ying-yang symbols on flag, 21 February 1984

Macao

Flag adopted 31 March 1993

Syria

Flag of United Arab Republic (Syria and Egypt) adopted 22 February 1958

Saint Lucia

Flag adopted 22 February 1979 (in use since 1 March 1967)

Poland

Effective date of legislation - 22 February 1990

Estonia

Flag adopted 24 February 1918, in disuse during Soviet era

Samoa

Flag adopted 24 February 1949

Antigua and Barbuda

Adopted 27 February 1997

Western Sahara

Flag adopted 27 February 1976

Latvia

Flag readopted 27 February 1990

Ghana

Flag readopted 28 February 1966

March

Mali

Flag approved 1 March 1961

Kyrgyzstan

Flag Adopted 3 March 1992

Congo, Democratic Republic of

New flag of D.R. Congo first hoisted - 4 March 2006

Ghana

Flag adopted 6 March 1957, in disuse 1964-66

Venezuela

Law changing flag and arms passed 9 March 2006

Morocco

Flag described in constitution - 10 March 1974

Haiti

Cap of Liberty restored to flag in constitution dated 10 March 1987

Venezuela

Publication of law and arms legislation 10 March 2006

Venezuela

New 8-star national flag first hoisted 12 March 2006

Aruba

Official specifications published - 14 March 1977

Saudi Arabia

Flag adopted 15 March 1973

South Africa

Flag design selected 15 March 1994

Aruba

Flag adopted 16 March 1976

Aruba

Flag first hoisted - 18 March 1976

South Africa

Specification issued 18 March 1994

Lithuania

Readopted, 20 March 1989

Namibia

Flag adopted 21 March 1990

East Timor

Flag confirmed and colors redefined in constitution 22 March 2002

Philippines

Specifications issued 25 March 1936

Venezuela

Minor modification adding coat of arms to the flag - 28 March 1905

Panama

Flag ratified 28 March 1941

Haiti

Constitution officially ratified 29 March 1987

Peru

Civil flag confirmed 31 March 1950

Northern Mariana Islands

Adopted as a district flag 31 March 1972

April

Mauritania

Flag adopted 1 April 1959

Pitcairn

Flag approved by Queen Elizabeth II on 2 April 1984 (based on 1980 design)

Albania

Socialist star added to flag - 1946

�land Islands

Flag first hoisted - 3 April 1954

Monaco

Flag adopted 4 April 1881

Northern Mariana Islands

Adopted as territorial flag 4 July 1976

San Marino

Flag adopted 6 April 1862

Albania

1920 flag readopted - 7 April 1992

Montserrat

Flag adopted 10 April 1909

Togo

Flag adopted 11 April 1960

Tuvalu

reverted to 1977 flag 11 April 1997

French Polynesia

Flag use regulated 12 April 1996 (autonomous region flag)

Albania

Flag changed by occupying Italian government - 13 April 1939

Mexico

Flag modified by Republican government 14 April 1823

Australia

flag confirmed in legislation - 14 April 1954

Christmas Island

Flag unofficially adopted 14 April 1986

Bulgaria

Flag adopted 16 April 1897

Jordan

Flag adopted 16 April 1928

Tuvalu

flag legislated 17 April 1997

Zimbabwe

Flag adopted 18 April 1980

South Africa

Flag proclamation issued in government gazette

American Samoa

Flag changed 27 April 1960

Sierra Leone

Flag adopted 27 April 1961

Austria

Legislated 27 April 1984, flag dates to 1230

Moldova

Flag adopted 27 April 1990

El Salvador

Flag replaced 28 April 1865

May

Pitcairn

First hoisted May 1984

Denmark

Proportions set - 1 May 1893

Mozambique

Flag adopted 1 May 1983

South Africa

Flag adopted in Constitution

Russia

Adopted as Civil ensign 7 May 1883 (disuse during Soviet era)

Germany

Flag adopted 9 May 1949

Brazil

Four stars added to flag 11 May 1992

Cayman Islands

Flag adopted 14 May 1958

El Salvador

1821 flag reinstated - 17 May 1912

Virgin Islands

Flag adopted 17 May 1921

Congo, Democratic Republic of

Flag adopted 17 May 1997

Philippines

Flag adopted 19 May 1898 (use prohibited until 1919)

Cuba

Flag adopted 20 May 1902, from a revolutionary flag dating from 1850

Sudan

Flag adopted 20 May 1970

Cameroon

Flag adopted 20 May 1975

Yemen

Flag adopted 20 May 1990

East Timor

First hoisting 20 May 2002

Niger

Flag specified in constitution, 22 May 1995

Guyana

Flag adopted 26 May 1966

Finland

Colors standardized - 26 May 1978

South Africa

Flag first hoisted 27 April 1994

Brazil

Star added to flag 28 May 1968

Finland

Flag adopted 29 May 1918

Anguilla

Adopted 30 May 1990; First hoisted 30 May 1990

June

Brazil

Star added to flag June 1960

Tunisia

flag legislated 1 June 1959

Albania

Italian occupying flag formalized in constitution - 3 June 1939

Liechtenstein

Crown modified 3 June 1957

Kazakhstan

Flag adopted 4 June 1992

Turkey

Flag adopted 5 June 1936

Faroe Islands

Change of shade of blue - 5 June 1959

Norfolk Island

Flag selected 6 June 1979 (unofficial)

Belarus

Flag adopted 7 June 1995

Vatican City (Holy See)

Flag adopted 8 June 1929 (based on Catholic Church flag of 1825)

New Zealand

Flag legislated as National flag - 12 June 1902

Marshall Islands

Flag adopted 12 June 1979

United States

Flag adopted 14 June 1777

Iceland

Change in the specification for the blue color 17 June 1944

Seychelles

Effective date of legislation 17 June 1996

Mexico

Arms on flag modified 18 June 1864

Iceland

Flag approved by royal decree 19 June 1915 for Marine purposes

Italy

Flag adopted 19 June 1946 (originally the flag of theCisalpine Republic

Greenland

Flag adopted 21 June 1985

Sweden

Officially readopted 22 June 1906

Marshall Islands

Flag approved by High Commissioner 22 June 1979

Luxembourg

Flag adopted 23 June 1972 (first hoisted circa 1845-1848)

Liechtenstein

Flag adopted 24 June 1937 (crown added to older version)

Haiti

new constitution changes flag - 25 June 1964, in disuse until 1987

Djibouti

Flag adopted 27 June 1977

Slovenia

Flag adopted 27 June 1991

Burundi

Adopted 28 June 1967

Iraq

Flag modified 28 June 2004

Portugal

Flag adopted 30 June 1911

Tanzania

Flag adopted 30 June 1964

Liechtenstein

Crown modified 30 June 1982

July

Papua New Guinea

Flag adopted 1 July 1971 (pre-independence)

Hong Kong

Flag officially hoisted 1 July 1997

Algeria

Flag adopted 3 July 1962 - originally a pre-revolutionary flag

United States

Five stars added and number of stripes returned to 13 - 4 July 1818

United States

One star added to flag 4 July 1819

United States

Two stars added to flag 4 July 1820

United States

One star added to flag 4 July 1822

United States

One star added to flag 4 July 1836

United States

One star added to flag 4 July 1836

United States

One star added to flag 4 July 1845

United States

One star added to flag 4 July 1846

United States

One star added to flag 4 July 1847

United States

One star added to flag 4 July 1848

United States

One star added to flag 4 July 1851

United States

One star added to flag 4 July 1858

United States

One star added to flag 4 July 1859

United States

One star added to flag 4 July 1861

United States

One star added to flag 4 July 1863

United States

One star added to flag 4 July 1865

United States

One star added to flag 4 July 1867

United States

One star added to flag 4 July 1877

United States

Five stars added to flag 4 July 1890

United States

One star added to flag 4 July 1891

United States

One star added to flag 4 July 1896

United States

One star added to flag 4 July 1908

United States

Two stars added to flag 4 July 1912

Guam

Flag adopted 4 July 1917

United States

One star added to flag 4 July 1959

United States

One star added to flag 4 July 1960

Malawi

Flag adopted 6 July 1964

Venezuela

Flag pattern adopted 9 July 1863 with seven stars

Qatar

Flag adopted 9 July 1971

Bahamas

Flag adopted 10 July 1973

Uruguay

Flag adopted 11 July 1830

Kiribati

Flag adopted 12 July 1979

Montenegro

Flag adopted 12 July 2004

Venezuela

First hoisting of Venezuelan flag 14 July 1811

Bolivia

Flag reconfirmed 14 July 1888

Hungary

Decree specifies flag sizes for governmental use - 14 July 2000

Venezuela

Flag adopted as official flag 15 July 1811

Venezuela

Flag adopted 15 July 1930

Montenegro

Flag first hoisted 15 July 2004

Norway

Flag adopted - July 21, 1821 (unofficial)

Hungary

Flag replaced by Hungarian Soviet Republic flag

India

Flag adopted 22 July 1947

Maldives

Flag adopted 25 July 1965

Liberia

Flag created 26 July 1847

Iran

Flag adopted 29 July 1980

Hungary

Flag restored circa 31 July 1919

Iraq

Flag adopted 31 July 1963

August

Poland

1831 flag used as the flag of the Second Republic - 1 August 1919

Benin

Flag readopted 1 August 1990

Albania

Kingdom of Albania approved a modified flag to include Skanderbeg's Helmet - 3 August 1929

Cook Islands

Flag adopted 4 August 1979

Burkino Faso

Flag adopted 4 August 1984

Albania

New flag proposal submitted to King Zog - 5 August 1929

Jamaica

Flag adopted 6 August 1962

Estonia

Flag reinstated 7 August 1990

Albania

Kingdom of Albania flags formally adopted - 8 August 1929

Gabon

Flag adopted 09 August 1960

Niger

Flag recodified in constitution, 9 August 1999

Hong Kong

Approval of flag by Hong Kong SAR preparatory committee 10 August 1996

Guatemala

Flag adopted 12 August 1871

Japan

Flag adopted 13 August 1999 (in use since 17th century)

Pakistan

Flag adopted 14 August 1947

Paraguay

First Paraguayan tribar adopted 15 August 1812

Cyprus

Flag adopted 16 August 1960

Luxembourg

Adoption official on 16 August 1972

Serbia

Flag adopted 17 August 2004

Congo

Flag adopted 18 August 1958, in disuse 1969-1991

Senegal

Flag adopted 20 June 1960

Romania

New arms of People's Republic of Romania added to flag 21 August 1965

Equatorial Guinea

Flag adopted 21 August 1979

Russia

Officially adopted as state flag 21 August 1991

Nicaragua

Specifications on size and shade of blue issued 23 August 1971

Armenia

Reconfirmed by Supreme Council 23 August 1990

Liberia

First hoisted 24 August 1847

Armenia

Adopted by Supreme Council 24 August 1990

Angola

27 August 2003 - New flag adopted, not yet ratified

September

Slovakia

Flag adopted 1 September 1992

Lithuania

Proportions changed 1 September 2004

Australia

First hoisted, 3 September 1901

Slovakia

First hoisted 3 September 1992

Ukraine

use reconfirmed 3 September 1998

Nicaragua

Flag adopted 4 September 1908

Morocco

Flag described in constitution - 4 September 1992

Kuwait

Flag adopted 7 September 1961

Sri Lanka

Flag adopted 7 September 1978, incorporating thee flag of Kandy, dating back to 1815, and national flag of 1948

Korea, Democratic Peoples Republic of

Flag adopted 8 September 1948

Guatemala

Flag colors and size standardized 12 September 1968

El Salvador

Flag reaffirmed in legislation - 14 September 1972

Mexico

New representation of arms on flag 15 September 1917

Malaysia

Flag adopted 16 September 1963

Indonesia

Flag hoisted 17 August 1945

Mexico

Flag revised 17 September 1968

Haiti

flag dimensions specified 18 September 1949

Italy

Colors standardized 18 September 2002

Saint Kitts and Nevis

Flag adopted 19 September 1983

Malta

Flag adopted 21 September 1964

Cambodia

Flag readopted 21 September 1993

Cape Verde

Flag adopted 22 September 1992

Guinea Bissau

Flag adopted 24 September 1973

Ecuador

Flag adopted 26 September 1860

Guatemala

Colors standardized 26 September 1997

Burundi

Proportions changed 27 September 1982

Lesotho

New flag adopted 27 September 2006 (National Flag Act)

Thailand

Flag adopted 28 September 1917

Albania

Royal decree (Italian) approving flag - 28 September 1939

Syria

United Arab Republic dissolved 28 September 1961, flag in disuse

Brunei

Flag adopted 29 September 1959

Botswana

Flag adopted 30 September 1996

October

Chile

Flag adopted 1 October 1949

China

Flag adopted 1 October 1949

Nigeria

Flag officially adopted 1 October 1960

Tuvalu

Flag adopted at independence 1 October 1978

Tuvalu

Flag changed to add additional star - 1 October 1995

Lesotho

New flag hoisted - 3 October 2006

Bermuda

Flag adopted 4 October 1910

Egypt

Flag adopted 4 October 1984

Saint Helena

Flag adopted 4 October 1984

Macedonia, Former Yugoslav Republic of

Flag approved 5 October 1995

Swaziland

Flag adopted 6 October 1968

Mexico

Flag adopted 7 October 1821

Taiwan

Naval ensign adopted as national flag - 8 October 1928

Uganda

Flag adopted 9 October 1962

Congo

Flag readopted 10 October 1991

Somalia

Flag adopted 12 October 1954

Niue

Flag adopted 15 October 1975

Oman

Change in width of stripes and proportions 18 October 1995

Tristan da Cunha

Flag adopted 20 October 2002

Madagascar

Flag adopted 21 October 1958

Costa Rica

Change to number of stars - 12 October 1964

Saint Vincent and the Grenadines

Flag adopted 21 October 1985

Canada

Flag adopted 22 October 1964

New Zealand

23 October 1869 - Flag proclaimed as colonial ensign

Zambia

Flag adopted 24 October 1964

Rwanda

Flag adopted 25 October 2001

Israel

Flag adopted 28 October 1948

Cambodia

Flag adopted 29 October 1948 (in disuse 1970-1993)

Philippines

Flag sanction lifted by US - 30 October 1919

Bolivia

Flag adopted 31 October 1851

November

Dominica

Flag adopted 3 November 1978

Dominica

Modifications to disk - 3 November 1981

Dominica

Fimbriations eliminated around stars 3 November 1990

Tonga

Flag adopted 4 November 1875

S�o Tom� and Principe

Flag adopted 5 November 1975

Dominican Republic

Flag adopted 6 November 1844

Chad

Flag adopted 6 November 1959

Turks and Caicos

Flag adopted 7 November 1968

British Indian Ocean Territory

Flag adopted 8 November 1990

Guinea

Flag adopted 10 November 1958

Angola

Adopted 11 November 1975

British Virgin Islands

Scroll added to flag - 15 November 1960

Benin

Flag adopted 16 November 1959, in disuse 1975-1990

Morocco

French protectorate of Morocco flag officialized - 17 November 1915

Latvia

Adopted 18 November 1918 (flag dates from 1279, in disuse during Soviet era)

Solomon Islands

Flag adopted 18 November 1977

Uzbekistan

Flag adopted 18 November 1991

Brazil

Adopted 19 November 1889

Libya

Flag adopted 19 November 1977

Macao

Officially hoisted at transfer 19 November 1999

Romania

Flag established in Romanian constitution 21 November 1991

Niger

Flag adopted 23 November 1959

French Polynesia

Flag adopted 23 November 1984

Kuwait

Flag first hoisted, 24 November 1961

Tajikistan

Flag adopted 25 November 1992

Paraguay

Flag with arms in center codified 25 November 1842

Suriname

Flag adopted 25 November 1975

Columbia

Flag adopted 26 November 1861

Iceland

Flag approved for national use 30 November 1918

Vietnam

Flag adopted 30 November 1955

Federated States of Micronesia

Flag adopted 30 November 1978 as the flag of the Pacific Island Trust Territory

Barbados

Adopted 30 November 1996

December

Afghanistan

Black-Red-Green motif restored December 1992 - in disuse during Taliban era

Tuvalu

Flag changed in December 1995 and original pattern goes into disuse

Central African Republic

Flag adopted 1 December 1958

Laos

Flag adopted 2 December 1975

Singapore

Flag adopted 3 December 1959

C�te d'Ivoire

Flag adopted 4 December 1959

Eritrea

Flag adopted 5 December 1995

Bulgaria

arms of People's Republic added to flag - 6 December 1947

Lebanon

Flag adopted 7 December 1943

Romania

Effective date of Romanian Constitution 8 December 1991

Mexico

recodification of flag law in revised decrees on national symbols - 8 December 2005

Norway

Flag legislated on 10 December 1898

Switzerland

Flag adopted 12 December 1889, although some forms were in use unoffically since the 15th century

Kenya

Flag adopted 12 December 1963

India

New law regarding respect for the national flag - 12 December 2005

Norway

Flag legislation published 15 December 2 1898

Norway

legislation becomes effective 15 December 1899

Nepal

Emblems on flag streamlined 16 December 1962

Oman

Flag adopted 17 December 1970

Australia

Addition of seventh point to Commonwealth star announced 19 December 1908

Spain

Flag adopted 19 December 1981

Congo, Democratic Republic of

Constitutional referendum (18-19 Dec. 2005) passed - planned return to flag of 1963-66 (implementation date unknown)

Mexico

Arms on flag modified 20 December 1880 by proclamation

Panama

Flag first hoisted 20 December 1903

United Arab Emirates

Adopted 21 December 1971

Croatia

Flag adopted 21 December 1990

Puerto Rico

Flag adopted 22 December 1895 (use forbidden until 1952)

Greece

Colors standardized 22 December 1978

Comoros

Flag prescribed in new constitution - 23 December 2001

Russia

Reuse following dissolution of Soviet Union - 26 December 1991

Romania

Arms removed from flag 27 December 1989

Bulgaria

1897 flag readopted 17 December 1990

Ireland

Use confirmed 29 December 1937

Faroe Islands

Blue color standardized - 29 December 1998

Comoros

New flag hoisted - 31 December 2001