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The sovereign is a British gold coin with a nominal value of one pound sterling (£1) and contains 0.2354 troy oz of pure gold. Struck since 1817, it was originally a circulating coin that was accepted in Britain and elsewhere in the world; it is now a bullion coin and is sometimes mounted in jewellery. In addition, circulation strikes and ...
Gold certificates were issued by the United States Treasury as a form of representative money from 1865 to 1933. While the United States observed a gold standard, the certificates offered a more convenient way to pay in gold than the use of coins. General public ownership of gold certificates was outlawed in 1933 and since then they have been ...
The city of Johannesburg located in South Africa was founded as a result of the Witwatersrand Gold Rush which resulted in the discovery of some of the largest natural gold deposits in recorded history. The gold fields are confined to the northern and north-western edges of the Witwatersrand basin, which is a 5–7 km (3.1–4.3 mi) thick layer ...
It’s one of climbing’s greatest mysteries: was Everest really conquered for the first time in 1953, or did two mountaineers make it to the summit in 1924, before dying in mysterious circumstances?
Advanced scraping tools were found in Morocco dating to 90–120,000 years ago, they are made from bone and would have enabled the people using them to make "supple leather" from hides, unlike older bone scrapers. [29] [30] 164 kya – 47 kya: Heat treating of stone blades in South Africa. [31] 135 kya – 100 kya: Beads in Israel and Algeria [32]
Ancient history is a time period from the beginning of writing and recorded human history through late antiquity. The span of recorded history is roughly 5,000 years, beginning with the development of Sumerian cuneiform script. Ancient history covers all continents inhabited by humans in the period 3000 BC – AD 500, ending with the expansion ...
The Older Peron transgression was a period identified in 1961 [11] happening between 6,000 and 4,600 years BP when sea levels were 3 to 5 metres higher than today. [ 12 ] Plants buried in the Quelccaya Ice Cap in the Peruvian Andes demonstrate the climate had shifted suddenly and severely to capture the plants and preserve them until now.
The geological history of the Earth follows the major geological events in Earth's past based on the geological time scale, a system of chronological measurement based on the study of the planet's rock layers (stratigraphy). Earth formed about 4.54 billion years ago by accretion from the solar nebula, a disk-shaped mass of dust and gas left ...