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Tyrian purple is a pigment made from the mucus of several species of Murex snail. Production of Tyrian purple for use as a fabric dye began as early as 1200 BC by the Phoenicians, and was continued by the Greeks and Romans until 1453 AD, with the fall of Constantinople.
Deep reddish purple. B: Normalized to [0–255] (byte) The color Byzantium is a particular dark tone of purple. It originates in modern times, and, despite its name, it should not be confused with Tyrian purple ( hue rendering ), the color historically used by Roman and Byzantine emperors. The latter, often also referred to as "Tyrian red", is ...
Shades of purple. There are numerous variations of the color purple, a sampling of which is shown below. In common English usage, purple is a range of hues of color occurring between red and blue. [1] However, the meaning of the term purple is not well defined. There is confusion about the meaning of the terms purple and violet even among ...
Stellar classification. In astronomy, stellar classification is the classification of stars based on their spectral characteristics. Electromagnetic radiation from the star is analyzed by splitting it with a prism or diffraction grating into a spectrum exhibiting the rainbow of colors interspersed with spectral lines.
Tetragrammatic cross Relief with the tetragrammatic cross as imperial arms, in the Istanbul Archaeological Museum. During the Palaiologan period, the insigne of the reigning dynasty, and the closest thing to a Byzantine "national flag", according to Soloviev, was the so-called "tetragrammatic cross", a gold or silver cross with four letters beta "Β" (often interpreted as firesteels) of the ...
A purple-pink star sapphire displaying asterism in a platinum ring. An asterism (from Ancient Greek ἀστήρ (astḗr) 'star', and -ism) is a star-shaped concentration of light reflected or refracted from a gemstone. It can appear when a suitable stone is cut en cabochon (i.e. shaped and polished, not faceted ). A gemstone that exhibits this ...
The star and crescent symbol used in the minted coins of the Sassanian Empire from the 3rd century until the 7th century. This coin was coined under Ardashir III. The Adoration of the Magi by Stephan Lochner; on the left, the crescent and star is depicted in the flag of representatives of Byzantium. The conjoined representation of a crescent ...
Painting a fence post purple sends a clear message to keep out of a property without relying on the actual words. Unlike a sign that can become stolen or unreadable over time, the purple paint ...