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The Laguna Copperplate Inscription (Filipino: Inskripsyón sa binatbát na tansô ng Laguna) is an official acquittance (debt relief) certificate inscribed onto a copper plate in the Shaka year 822 (Gregorian A.D. 900). It is the earliest-known, extant, calendar-dated document found within the Philippines. [1]
Production trends in the top five copper-producing countries, 1950-2012. This is a list of countries by mined copper production. Copper ore can be exported to be smelted so that a nation's smelter production of copper can differ greatly from its mined production. See: List of countries by copper smelter production.
It is the earliest known written document found in the Philippines, dated to be from the 9th century AD, and was deciphered in 1992 by Dutch anthropologist Antoon Postma. [2] The copperplate inscription suggests economic and cultural links between the Tagalog people of Philippines with the Javanese Medang Kingdom , the Srivijaya empire, and the ...
Copper(II) ions migrate through the electrolyte to the cathode. At the cathode (reduction reaction), Cu 2+ ions are reduced in copper metal and Cu (s) plates out, but less noble constituents such as arsenic and zinc remain in solution unless a higher voltage is used. [52] The reactions involving metallic copper and Cu 2+ ions at the electrodes ...
Copper. face-centered cubic (fcc) (cF4) Copper is a chemical element; it has symbol Cu (from Latin cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity ...
In 1883, Malaysia was the largest tin producer in the world. In 1885, 12.8 km of railway was constructed connecting Taiping to Port Weld in Perak. The first trunk road in Peninsular Malaysia was constructed passing through major mining towns in Perak, Selangor and Negeri Sembilan in which it was mostly used to transport tin from mines to ports.
Former headquarters (demolished in 2015) The company was established in 1876 with 16 members, including the founder, Takashi Masuda. By the end of World War II, it had become a dominant trading giant, but was dissolved by the order of GHQ. [1] The current Mitsui & Co. was established in 1947 as Daiichi Bussan Kaisha, Ltd.
The Balinese copperplate inscription or Sembiran inscription is a collection of ten copper plate inscriptions, which were found in the village of Sembiran, Tejakula district, Buleleng Regency, on the northern part of Bali island. [ 1][ 2] All inscription plates have a date, which is between 922 and 1181 CE, so they include more than 200 years. [ 3]