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Article

Diamond

Gem-quality diamonds crystallize as octahedrons (8 faces), trisoctahedrons (24 faces), hexoctahedrons (48 faces) or a combination of these. Diamond owes its supreme standing among all the gemstones to 4 specific attributes.
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Article

Diamonds of Canada

Diamonds of Canada, mined by Jacques Cartier's men at the mouth of Rivière du Cap-Rouge in 1541.
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Article

Dictionary of Canadian Biography/Dictionnaire biographique du Canada

Dictionary of Canadian Biography/Dictionnaire biographique du Canada is a multivolume, comprehensive reference work on the lives of people who have contributed to Canada's history in every field of endeavour.
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Article

Dieppe Raid

During the Second World War, on 19 August 1942, the Allies launched a major raid on the French coastal port of Dieppe. Operation Jubilee was the first Canadian Army engagement in the European theatre of the war, designed to test the Allies' ability to launch amphibious assaults against Adolf Hitler's "Fortress Europe." The raid was a disaster: More than 900 Canadian soldiers were killed, and thousands more were wounded and taken prisoner. Despite the bloodshed, the raid provided valuable lessons for subsequent Allied amphibious assaults on Africa, Italy and Normandy.
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Article

Dieppe: The Beaches of Hell

The following article is an editorial written by The Canadian Encyclopedia staff. Editorials are not usually updated.
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Article

Dietetics

Dietetics (from the Greek diaita, meaning "mode of life") has been implicated in the cause, cure and prevention of disease from earliest recorded history.
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Article

Diggity Archaeological Site

The Diggity archaeological site is located at the southeastern end of Spednic Lake, near the entrance to Palfrey Lake, in southwestern New Brunswick.
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Article

Canada and the Digital Economy

The digital economy is the economic activity conducted through digital technologies such as the Internet. It is also called the Internet economy, the new economy or the web economy. Many scholars see the digital economy as the fourth industrial revolution. As of 2013, it consumed approximately 10 per cent of the world’s electricity. Many of the world’s biggest companies operate in the digital economy. A growing number of Canadians depend on it for their livelihood. In 2017, nearly 5 per cent of all jobs in Canada were in the digital economy. The gross domestic product (GDP) connected to it represented 5.5 per cent of Canada’s total economy — a bigger percentage than mining or oil and gas extraction. However, the often-hidden infrastructure of the digital economy brings new threats to the environment. The rise of cryptocurrencies could also dramatically change how people buy and sell things.
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Article

Dike

In geography and civil engineering, a dike is a barrier or ditch limiting or preventing the flow of water. Such barriers are also called levees. While a dam stretches across a waterway, a dike usually runs along its side. Dikes can form as a result of natural forces, but most are constructed by humans. The purpose of building a dike is usually to prevent flooding. New land can also be reclaimed by using dikes to drain wetlands or to push back the boundaries of a body of water.
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Article

Dinosaurs and Canada

Dinosaurs were a group of animals that dominated the land environments of every continent. They lived from the late Triassic period to the end of the Cretaceous period (225 to 65 million years ago). However, birds are the direct descendants of dinosaurs, meaning dinosaurs are still common today. Paleontologists have found at least 88 different species of dinosaurs in Canada (see also Dinosaurs Found in Canada). The primary site of these fossils is Dinosaur Provincial Park, Alberta. Well-known dinosaurs first named from Canadian specimens include Albertosaurus, Centrosaurus, Corythosaurus, Dromaeosaurus,Gorgosaurus, Lambeosaurus, Pachyrhinosaurus, Parasaurolophu sand Styracosaurus.
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Article

Dinosaur Eggs

Members of the Central Asiatic Expedition, led by the American Museum of Natural History, first recognized dinosaur eggs in Mongolia in the 1920s. Since then, paleontologists have discovered fossilized remains of dinosaur eggs at over 200 locations worldwide. These locations include sites in Africa, China, Europe, India, Korea, and the Americas. The first dinosaur eggs from North America were discovered in Montana in the late 1970s. In Canada, dinosaur eggshell fragments were initially found in the early 1980s. Complete dinosaur eggs were discovered in 1987 at a site in southern Alberta known as Devil’s Coulee.
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search.types.interactivemap

Dinosaur Fossils in Canada Interactive Map

The map below indicates the location of dinosaur fossils found in Canada. Click on the individual dinosaur icons to learn the name of the dinosaur identified at that location, the period during which it lived, as well as other information. (See also Dinosaurs and Canada.)
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Article

Dinosaur Hunting in Western Canada

Most early discoveries were made in artificial excavations, eg, rock quarries or coal mines.
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Article

Dinosaurs Found in Canada

Canada is home to some of the richest deposits of dinosaur fossils in the world (see also Dinosaurs and Canada). The vast majority of the dinosaurs discovered in Canada are from Alberta, where the rising Rocky Mountains at the end of the Cretaceous period and a network of ancient rivers provided the sediment necessary for burying and preserving their remains. The names of many of the 88 dinosaurs listed below pay homage to the province, including Albertosaurus sarcophagus, Edmontosaurus regalis and Ornithomimus edmontonicus. Others honour prominent people in Canadian paleontology, for example, Lambeosaurus for Lawrence Lambe, a paleontologist active at the turn of the 20th century, Epichirostenotes curriei for Philip Currie, a paleontologist and the founder of the Royal Tyrrell Museum and Borealopelta markmitchelli for Mark Mitchell, an RTM technician who spent 7,000 hours removing rock from the fossil.
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Article

Dionne Case

Dionne Case (1978), known as Re Public Service Board et al, Dionne et al, and Attorney General of Canada et al.
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