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  2. Three-dollar piece - Wikipedia

    en.wikipedia.org/wiki/Three-dollar_piece

    Three-dollar piece ($3) United States Value 3 United States dollars Mass 5.015 g Diameter 20.5 mm (.807 in) Edge reeded Composition 90% gold, 10% copper Gold.1451 troy oz Years of minting 1854 (1854) –1889 (1889) Mint marks D, O, S. Found immediately below the wreath on the reverse. Philadelphia Mint pieces lack mint mark. Obverse Design Liberty as a Native American princess Designer James B ...

  3. Mohawk Mining Company - Wikipedia

    en.wikipedia.org/wiki/Mohawk_Mining_Company

    The Mohawk Mining Company was a major copper mining company, based in the Keweenaw Peninsula of Michigan, that was established in November 1898 and lasted until 1932.The company, between 1906 and 1932, paid out more than $15 million in shareholder dividends. [1]

  4. Hydraulic mining - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_mining

    Gold miners excavate an eroded bluff with jets of water at a placer mine in Dutch Flat, California sometime between 1857 and 1870.. The modern form of hydraulic mining, using jets of water directed under very high pressure through hoses and nozzles at gold-bearing upland paleogravels, was first used by Edward Matteson near Nevada City, California in 1853 during the California Gold Rush. [3]

  5. Excise tax in the United States - Wikipedia

    en.wikipedia.org/wiki/Excise_tax_in_the_United...

    Excise taxes dedicated to the Airport and Airway Trust Fund raised $9.0 billion in fiscal year 2020, down from $16.0 billion in fiscal year 2019. [2] 90% of the excise tax revenue comes from taxing passenger air fares, and the remaining 10% comes from air cargo and aviation fuel taxes.

  6. Florida State Road 913 - Wikipedia

    en.wikipedia.org/wiki/Florida_State_Road_913

    Originally, there was no State Road connection between I-95 and Key Biscayne when the Interstate highway was opened in 1967. The southernmost exit of the expressway was a short "trunk ramp" forming the southwestern end of Southwest 23rd Road at Southwest First Avenue (with the ramps having an at-grade crossing with Florida East Coast Railroad tracks before reaching First Avenue).

  7. Zimbabwean dollar (2019–2024) - Wikipedia

    en.wikipedia.org/wiki/Zimbabwean_dollar_(2019...

    On 29 January 2009, the Zimbabwean government legalised the use of foreign currencies, such as the United States dollar and the South African rand.In response, Zimbabweans quickly abandoned the old Zimbabwean dollar, which was collapsing from what was at the time the second-highest ever rate of hyperinflation in the world (after the Hungarian pengő in 1946).

  8. Witsand Solar Desalination Plant - Wikipedia

    en.wikipedia.org/wiki/Witsand_Solar_Desalination...

    The unit cost of the purified water at this plant is between ZAR:7 to ZAR:8 (US$0.52 to US$0.60) for every 1,000 liters (220 imp gal; 264 U.S. gal). In comparison, the temporary diesel-fueled desalination plant at Strandfontein, in Cape Town, produces potable water at ZAR:35 to ZAR:40 (US$2.62 to US$3.00) for every 1,000 liters. If this project ...

  9. Minimum wage in the United States - Wikipedia

    en.wikipedia.org/wiki/Minimum_wage_in_the_United...

    Minimum wage legislation emerged at the end of the nineteenth century from the desire to end sweatshops which had developed in the wake of industrialization. [17] Sweatshops employed large numbers of women and young workers, paying them what were considered non-living wages that did not allow workers to afford the necessaries of life. [18]