What colour/color flag was historically first displayed to indicate sickness aboard a ship?
Flag of the Second Spanish Republic in Spain because it is one of the Catholic liturgical colours that is displayed on liturgical vestments, altar cloths, and other ecclesiastical textile furnishings to signify certain seasons of the Catholic liturigical year, and, being a historically Catholic nation, this colour had annual and public use throughout Spain. Also, it was used in antiquity as the heraldic colour of the Kingdom of Castile. The coat of arms of the Kingdom of León bore a purple lion rampant and the flag reputed to have been used in the Revolt of the Comuneros displayed a yellow castle on a purple background. "Morado",
Heliotrope (color) Heliotrope (color) Heliotrope is a pink-purple tint that is a representation of the colour of the heliotrope flower. The first recorded use of heliotrope as a color name in English was in 1882. The color heliotrope gray is displayed at right. The first recorded use of "heliotrope gray" as a colour name in English was in 1912. The source of this colour is: "ISCC-NBS Dictionary of Colour Names" (1955)--Colour Sample of Heliotrope Gray (color sample #227) At right is displayed the colour old heliotrope. Another name for this colour is "old helio". The first recorded use of "old helio" as