# History of Christian flags

The history of Christian flags encompasses the establishment of Christian states, the Crusader era, and the 20th century ecumenical movement.

## National flags with Christian symbolism

Christian empires, such as the Kingdom of Georgia, which became a Christian state in AD 337, adopted Christian symbolism in its flag. Likewise, the flags of the Byzantine Empire often depicted "a bowl with a cross, symbol[ic] of the Byzantine worldly domination for centuries and of the ecumenical mission to spread Christianity to all the world".
Many officially Christian states and predominantly Christian countries have flags with Christian symbolism. Many flags used by modern nations have their roots in historical Christian flags used in historic Christian empires, such as the Byzantine Empire, or in crusader vexillology.
* Flag of Armenia
* Flag of Andorra
* Flag of Australia
* Flag of Cook Islands
* Flag of Denmark
* Flag of Dominica
* Flag of the Dominican Republic
* Flag of El Salvador
* Flag of Fiji
* Flag of Finland
* Flag of Georgia
* Flag of Greece
* Flag of Iceland
* Flag of Ireland
* Flag of Lebanon
* Flag of Liechtenstein
* Flag of Malta
* Flag of Moldova
* Flag of Montenegro
* Flag of Montserrat
* Flag of New Zealand
* Flag of Niue
* Flag of Norway
* Flag of Portugal
* Flag of San Marino
* Flag of Serbia
* Flag of Slovakia
* Flag of Spain
* Flag of Sweden
* Flag of Switzerland
* Flag of Tonga
* Flag of Tuvalu
* Flag of the United Kingdom
* Flag of the Vatican City

## Crusader era

In the Middle Ages, Christian flags bore various types of Christian crosses. Military orders of Christian knights used these crosses in their flags. For example, the Knights Hospitaller (Knights of Malta) used and continue to use a Maltese cross in their flags.
* Flag of the French crusaders and the Order of Saint George
* Flag of the English crusaders
* Flag of the Italian crusaders
* Flag of the Flemish crusaders
* Flag of the Breton crusaders
* Flag of the Gascon crusaders
* Flag of the German crusaders, then used as the war flag of the Holy Roman Empire
* Flag of the Danish crusaders
* Flag of the crusader army of György Dózsa
* Flag of the Knights Hospitaller (Sovereign Military Order of Malta)
* Variant flag of the Knights Hospitaller (Sovereign Military Order of Malta)
* Flag of the Knights Templar
* Flag of the Teutonic Order
* Flag of the Order of Saint Lazarus
* Flag of the Order of the Holy Sepulchre
* Flag of the Kingdom of Jerusalem
* Flag of Marseille also has its origins in the Crusader era
* Flag of the Kingdom of Cyprus
* Flag of the Galleys of the Order of Saint Stephen
* Flag of the County of Tripoli

## Flags of Christian denominations

Many Christian denominations have their own denominational flag and display it alongside the ecumenical Christian Flag or independent from it.
Catholic Churches in communion with the Holy See often display the Vatican flag along with their respective national flag, typically on opposite sides of the sanctuary, near the front door, or hoisted on flagstaffs outside. Individual dioceses may also fly flags based on the diocesan coat of arms.
The Eastern Orthodox Church tradition, particularly jurisdictions of the Greek Orthodox Church under the direct authority of the Ecumenical Patriarch, often displays this flag. It is a Byzantine double-headed eagle on a yellow (Or) field.
Parishes in the Episcopal Church frequently fly the Episcopal flag, a Cross of St. George with the upper-left canton containing a Cross of St. Andrew formed by nine cross-crosslets (representing the nine original dioceses) on a blue background.
The Salvation Army has a flag with a blue border (symbolizing the purity of God the Father), a red field (symbolizing the blood of Jesus Christ), and a gold eight-pointed star (symbolizing the fire of the Holy Spirit). The star bears the Salvation army's motto, "Blood and Fire".
The Anglican Communion has a blue flag with a St George's Cross in the centre surrounded with a gold band with the wording, "The Truth shall make you free." in New Testament Greek on it. From the band sprout the points of a compass (symbolising the spread worldwide of Anglicanism). On the "North" of the compass is a mitre (a symbol of apostolic order essential to all Churches and Provinces constituting the Anglican Communion).
The Church of England uses the St George's Cross flag with the coat of arms of the individual diocese in the upper-left canton.
The Church of Scotland uses a Flag of Scotland depicting the Burning Bush (or Unburnt Bush, in some traditions).
The Church in Wales uses a blue Cross defaced with a gold Celtic Cross.
The Church of Ireland uses the St Patrick's Saltire but also uses the Compass-rose Flag of the Anglican Communion equally.
The Protestant Church in Germany, a federation of Lutheran, Reformed and United Protestant churches, has a flag with a violet Latin cross.
Additionally, many Catholic, Protestant and Orthodox churches maintain the use of the Labarum, a historical symbol of Christianity, which is rarely used as a flag at present.
* Flag of The Roman Catholic Church, also the flag of Vatican City and The Holy See
* Flag of the Greek Orthodox Church
* Flag of the Georgian Orthodox Church
* Flag of the Episcopal Church
* Flag of the Serbian Orthodox Church
* Flag of the Armenian Apostolic Church
* Standard of The Salvation Army
* Flag of the Anglican Communion
* Flag of the Church in Wales
* Flag of the Church of Scotland
* Flag of the Church of Ireland
* Flag of Anglican Church of Australia
* Flag of the Anglican Church of Canada
* Flag of the Protestant Church in Germany
* Flag of the Protestant Church in Germany (alternative version)
* Flag of the Church of Sweden
* Flag of the Hussites

## Christian Flag adopted by the Federal Council of Churches

In the beginnings of ecumenical movement in the late 19th and early 20th centuries, the Christian Flag was first conceived on 26 September 1897, at Brighton Chapel on Coney Island in Brooklyn, New York in the United States. The superintendent of a Sunday school, Charles C. Overton, gave a lecture to the gathered students and asked the students what an ecumenical flag representing all of Christianity would look like. In 1907, Overton and Ralph Diffendorfer, secretary of the Methodist Young People's Missionary Movement, designed and began promoting the flag. The Christian Flag intentionally has no patent, as the designer dedicated the flag to all of Christendom. With regard to the Christian symbolism of the Christian Flag:
   The ground is white, representing peace, purity and innocence. In the upper corner is a blue square, the color of the unclouded sky, emblematic of heaven, the home of the Christian; also a symbol of faith and trust. in the center of the blue is the cross, the ensign and chosen symbol of Christianity: the cross is red, typical of Christ's blood.
The ecumenical organization, Federal Council of Churches, now succeeded by the National Council of Churches and Christian Churches Together, adopted the flag on 23 January 1942. Since then, the Christian Flag is used by many congregations of various Christian traditions, including the Anglican, Baptist, Congregationalist, Lutheran, Mennonite, Methodist, Moravian, Presbyterian, Quaker, and Reformed, among others.
The famous hymn writer, Fanny J. Crosby, devoted a hymn titled “The Christian Flag”, with music by R. Huntington Woodman, in its honour; like the flag, the hymn is also free use. On the Sunday nearest 26 September 1997, the Christian Flag celebrated its one hundredth anniversary.