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These were the first monocles worn in England and could be found from the 1830s onwards. The second style, which was developed in the 1890s, was the most elaborate, consisting of a frame with a raised edge-like extension known as the gallery . [ 2 ]
These volumes were outlines for a larger publication that was never produced, so his ideas never saw mass dissemination. [50] Between the 11th and 13th centuries, so-called "reading stones" were invented. Often used by monks to assist in illuminating manuscripts, these were primitive plano-convex lenses, initially made by cutting a glass sphere ...
Europe by cartographer Abraham Ortelius in 1595. The history of Europe is traditionally divided into four time periods: prehistoric Europe (prior to about 800 BC), classical antiquity (800 BC to AD 500), the Middle Ages (AD 500–1500), and the modern era (since AD 1500).
Year Date Event Significance c. 1001: Leif Erikson is to settle during the winter in present-day Canada at L'Anse aux Meadows. Ericson is to be the first European to settle in the Americas during the Norse exploration of the Americas. 1016: Canute the Great becomes King of England after the death of Edmund Ironside, with whom he shared the ...
These timelines of world history detail recorded events since the creation of writing roughly 5000 years ago to the present day.. For events from c. 3200 BC – c. 500 see: Timeline of ancient history
Watches were worn during the Franco-Prussian War (1870–1871), and by the time of the Boer War (1899–1902), watches had been recognised as a valuable tool. [184] Early models were essentially standard pocket watches fitted to a leather strap, but, by the early 20th century, manufacturers began producing purpose-built wristwatches.
Stone tools unearthed in Ukraine were last used 1.4 million years ago, according to research that dated the tools using particles inside rock made by cosmic rays.
Timeline of microscope technology. c. 700 BC: The "Nimrud lens" of Assyrians manufacture, a rock crystal disk with a convex shape believed to be a burning or magnifying lens. [1] 13th century: The increase in use of lenses in eyeglasses probably led to the wide spread use of simple microscopes (single lens magnifying glasses) with limited ...