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The Philippines believes that the label Panacot on the map refers to the Scarborough Shoal, and it is the first map with label Panacot on it. [ 20 ] [ 21 ] Professor Li Xiaocong of China pointed out that the label Panacot in the 1734 map was not Scarborough Shoal, and the three groups of islands, Galit, Panacot and Lumbay also appeared in the ...
The earliest gold artifacts were discovered at the site of Wadi Qana in the Levant. [13] Silver is estimated to have been discovered in Asia Minor shortly after copper and gold. [14] There is evidence that iron was known from before 5000 BC. [15] The oldest known iron objects used by humans are some beads of meteoric iron, made in Egypt in ...
Zinc is refined by froth flotation of the ore, roasting, and final extraction using electricity (electrowinning). Zinc is an essential trace element for humans, [8] [9] [10] animals, [11] plants [12] and for microorganisms [13] and is necessary for prenatal and postnatal development. [14]
The oldest known pills were made of the zinc carbonates hydrozincite (described 1853) and smithsonite (described 1832). Calamine is a historic name for an ore of zinc (hemimorphite (IMA1962 s.p.) and smithsonite). [6] De architectura (about 15 BC) of Marcus Vitruvius Pollio, Libri X, vol. VII, Caput 8.
The Rizal Archaeological Site pushed back the first known human activity in the Philippines 10 times earlier. Prior to the excavation, the oldest fossil discovered in the country was the foot bone found in 2010 in Callao Cave, Cagayan Valley. The bone was dated at least 67,000 years old. [3]
National Scientists of the Philippines (1978–1998). Pasig, Philippines: Anvil Publishing, Inc. 2000. ISBN 978-9712709326. Comrade Manokski's ORBAT- Timawa.net- "Islas de los Pintados: The Visayan Islands". Archived from the original on September 27, 2011. "Top 12 Surprising Filipino Inventions You Might Want To Know"
Scholarly information about the use of gold in early Philippine history comes mostly from artifacts that have been discovered in various sites in the Philippines, and from historical accounts from the early Spanish colonial period. Archeological excavation sites include ones in Batangas, Mindoro, Luzon, Samar, Butuan and Surigao. [7]
The earliest date suggested for direct Chinese contact with the Philippines was 982. At the time, merchants from " Ma-i " (now thought to be either Bay, Laguna on the shores of Laguna de Bay , [ 33 ] or a site called "Mait" in Mindoro [ 34 ] [ 35 ] ) brought their wares to Guangzhou and Quanzhou .