Vexillology (from the Latin vexillum, a flag or banner) is the scholarly study of flags, including the creation and development of a body of knowledge about flags of all types, their forms and functions, and of scientific theories and principles based on that knowledge. Flags were originally used to assist military coordination on the battlefield, and have evolved into a general tool for signalling and identification, particularly identification of countries.

Heraldry encompasses all of the duties of a herald, including the science and art of designing, displaying, describing and recording coats of arms and badges, as well as the formal ceremonies and laws that regulate the use and inheritance of arms. The origins of heraldry lie in the medieval need to distinguish participants in battles or jousts, whose faces were hidden by steel helmets.

"England expects that every man will do his duty" was a signal sent by Admiral Horatio Nelson, 1st Viscount Nelson from his flagship HMS Victory as the Battle of Trafalgar was about to commence on October 21, 1805. Trafalgar was the decisive naval engagement of the Napoleonic Wars. It gave the United Kingdom of Great Britain and Ireland control of the seas, removing all possibility of a French invasion and conquest of Britain. Although there was much confusion surrounding the wording of the signal in the aftermath of the battle, the significance of the victory and Nelson's death during the battle led to the phrase becoming embedded in the English psyche, and it has been regularly quoted, paraphrased and referenced up to the modern day. (more...)

The flag of Italy (bandiera d'Italia, often referred to in Italian as il Tricolore) is a tricolour featuring three equally sized vertical pales of green, white, and red, with the green at the hoist side. Its current form has been in use since 19 June 1946 and was formally adopted on 1 January 1948.

The first entity to use the Italian tricolour was the Repubblica Cispadana (Cispadane Republic) in 1797, after Napoleon's victorious army crossed Italy. During this time many small republics of Jacobin inspiration supplanted the ancient absolute states and almost all, with variants of colour, used flags characterised by three bands of equal size, clearly inspired by the French model of 1790. The colours chosen by the Republic were red and white, the colours of the flag of Milan, and green, which was the colour of the uniform of the Milanese civic guard. Some have attributed particular values to the colours, and a common interpretation is that the green represents the country's plains and the hills; white, the snow-capped Alps; and red, blood spilt in the wars of Italian independence. A more religious interpretation is that the green represents hope, the white represents faith, and the red represents charity; this references the three theological virtues. (more...)

Betsy Ross (January 1, 1752 - January 30, 1836) was an American woman who is said to have sewn the first American flag which incorporated stars representing the states of the Union. Born Elizabeth ("Betsy") Griscom in Philadelphia, Pennsylvania, she was the ninth of 17 children of Samuel and Rebecca Griscom, who were members of the Religious Society of Friends (Quakers) (her father was a master builder). She attended Friends (Quaker) schools, where she learned reading, writing, homemaking, and sewing. (more...)