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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.
Purple is one of the least used colors in vexillology and heraldry. Currently, the color appears in only four national flags: that of Dominica, Spain, El Salvador, and Nicaragua, and one co-official national flag, the Wiphala (co-official national flag of Bolivia ). However, it is also present in the flags of several administrative subdivisions ...
The Scramble for Africa [a] was the conquest and colonisation of most of Africa by seven Western European powers driven by the Second Industrial Revolution during the era of "New Imperialism" (1833–1914). In 1870, 10% of the continent was formally under European control. By 1914, this figure had risen to almost 90%, with only Liberia ...
Some of these gold bearing fan deltas are now at depths of 4 km (2.5 mi) below the surface. Although many of the older mines, around Johannesburg, are now nearly exhausted, the Witwatersrand Basin still produces most of South Africa's gold and much of the total world output.
Purple haze refers to a state of mind induced by psychedelic drugs, particularly LSD. Wearing purple is a military slang expression in the U.S., Canada and the U.K. for an officer who is serving in a joint assignment with another service, such as an Army officer on assignment to the Navy. The officer is symbolically putting aside his or her ...
National wealth can fluctuate, as evidenced in the United States after the Great Recession and subsequent economic recovery. During periods when equity markets experience strong growth, the relative national and per capita wealth of the countries where people are more exposed on those markets, such as the United States and United Kingdom, tend ...
Africa. Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km 2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth 's land area and 6% of its total surface area. [7] With 1.4 billion people [1] [2] as of 2021, it accounts for about 18% of the world's human ...
File:Political Map of Africa.svg. Size of this PNG preview of this SVG file: 494 × 599 pixels. Other resolutions: 198 × 240 pixels | 396 × 480 pixels | 633 × 768 pixels | 844 × 1,024 pixels | 1,688 × 2,048 pixels | 676 × 820 pixels. This is a file from the Wikimedia Commons. Information from its description page there is shown below.