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150: Ptolemy's Almagest contains practical formulae to calculate latitudes and day lengths. Diophantus' Arithmetica (pictured: a Latin translation from 1621) contained the first known use of symbolic mathematical notation.
To preserve continuity, the development of steam, in the early and later years, is therefore considered within the "Steam Age". Technology is a major cultural determinant, no less important in shaping human lives than philosophy, religion, social organization, or political systems. In the broadest sense, these forces are also aspects of technology.
To maintain continuity, the treatment of its diffusion is dealt with in the context of its dominant "age". For example, the "Steam Age" here is defined as being from 1840 to 1880. However, steam-powered boats were introduced in 1809, the CPR was completed in 1885 and railway construction in Canada continued well into the 20th century.
The Royal Canadian Institute Centennial Volume, [6] published in 1949, summarizes one hundred years of science in Canada and the history of the Royal Canadian Institute, 1849–1949. Since 2018, RCIScience has published an annual magazine for the public, featuring interviews and articles with scientists across Canada.
The Lower Paleolithic period lasted over 3 million years, during which there many human-like species evolved including toward the end of this period, Homo sapiens.The original divergence between humans and chimpanzees occurred 13 (), however interbreeding continued until as recently as 4 Ma, with the first species clearly belonging to the human (and not chimpanzee) lineage being ...
A series of labour movements collectively known as the "Canadian Labour Revolt" begin, lasting 6 years. 1919: Canada sends a delegation to the Paris Peace Talks, the conference resolving war issues. Canada signs the Versailles treaty as part of the British Empire, with parliament's approval. [91] Prohibition in Canada ends federally. [92] 1919
Investigators have determined that a skull discovered in the wall of an Illinois home in 1978 was that of an Indiana teenager who died more than 150 years ago, authorities announced Thursday.
See also: List of years in science Subcategories. This category has the following 200 subcategories, out of 615 total. ...