The Probert Encyclopaedia of General Information

FLAG

In its most popular usage, a flag is a piece of bunting, usually but not always, square or rectangular in shape, attached to a pole and used as a standard, ensign or signal for display or decoration, and to distinguish one company, party, or nationality from another. Formerly in Britain, a black flag was raised outside prisons to announce the execution of a prisoner. Traditionally in Britain, when in mourning flags are lowered to halfway down the pole and 'flown at half mast'.

In the army a flag is a banner by which one regiment is distinguished from another. Flags borne on the masts of vessels not only designate the country to which they belong, but also are made to denote the quality of the officer by whom a ship is commanded. Thus in the British navy an admiral's flag was displayed at the maintop-gallant-mast-head, a vice-admiral's at the foretop-gallant-mast-head, and a rear-admiral's at the mizzen-top-gallant-mast-head.

In the navy the supreme flag of Great Britain is the royal standard, which is only to be hoisted when the sovereign or one of the royal family is on board the vessel. All British ships of war in commission carry the white ensign, that is a white flag divided into four quarters by the red cross of St George and having the union flag (or union 'jack' as it is popularly called) in the upper corner next the staff.

British merchant ships are entitled to carry a red flag with the union in the corner. The union is the flag commonly used on shore as the national ensign. To lower or strike the flag is to pull it down, or take it in, out of respect or submission to superiors. To lower or strike the flag in an engagement is a sign of yielding. A sign of mourning is to hoist the flags at a half or two-thirds of the height of the masts, if on land at half the height of the staff. Besides the use of flags as distinguishing emblems, a very important use of them at sea, both by national and mercantile navies, is as signals according to an arranged code.
Research Flag