The Order of Canada (French: Ordre du Canada) is a Canadian national order, admission into which is, within the system of orders, decorations, and medals of Canada, the second highest honour for merit. It comes second only to membership in the Order of Merit, which is within the personal gift of Canada's monarch.

To coincide with the centennial of Canadian Confederation, the three-tiered order was established in 1967 as a fellowship that recognizes the achievement of outstanding merit or distinguished service by Canadians who made a major difference to Canada through lifelong contributions in every field of endeavour, as well as the efforts made by non-Canadians who have made the world better by their actions. Membership is thus accorded to those who exemplify the order's Latin motto, desiderantes meliorem patriam, meaning "they desire a better country.", a phrase taken from Hebrews 11:16 of the Holy Bible The three tiers of the order are Companion, Officer, and Member.

The order is administered by the Governor General-in-Council on behalf of the Queen of Canada. The monarch, at present Elizabeth II, is Sovereign of the order and the serving governor general, currently David Lloyd Johnston, is its Chancellor and Principal Companion. Appointees to the order are recommended by an advisory board and formally inducted by the governor general or the sovereign. As of February 2011, 5,837 people have been appointed to the Order of Canada, including scientists, musicians, politicians, artists, athletes, business people, television and film stars, benefactors, and others. Some have later resigned or have been removed from the order, while other appointments have been controversial. Appointees receive badges and the right to armorial bearings.

Canada ( /ˈkænədə/) is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean. Spanning over 9,900,000 km² (3,800,000 sq mi), Canada is the world's second-largest country by total area, and its common border with the United States is the longest land border in the world.

The land that is now Canada has been inhabited for millennia by various Aboriginal peoples. Beginning in the late 15th century, British and French colonial expeditions explored, and later settled, along the region's Atlantic coast. France ceded nearly all of its colonies in North America in 1763 after the Seven Years' War. In 1867, with the union of three British North American colonies through Confederation, Canada was formed as a federal dominion of four provinces. This began an accretion of provinces and territories and a process of increasing autonomy; the Canada Act 1982 severed the vestiges of legal dependence on Britain.

In mathematics, big O notation is used to describe the limiting behavior of a function when the argument tends towards a particular value or infinity, usually in terms of simpler functions. It is a member of a larger family of notations that is called Landau notation, Bachmann–Landau notation (after Edmund Landau and Paul Bachmann), or asymptotic notation. In computer science, big O notation is used to classify algorithms by how they respond (e.g., in their processing time or working space requirements) to changes in input size.

Big O notation characterizes functions according to their growth rates: different functions with the same growth rate may be represented using the same O notation. A description of a function in terms of big O notation usually only provides an upper bound on the growth rate of the function. Associated with big O notation are several related notations, using the symbols o, Ω, ω, and Θ, to describe other kinds of bounds on asymptotic growth rates.

Big O notation is also used in many other fields to provide similar estimates.

Céline Marie Claudette Dion, CC OQ, (French pronunciation: [selin djɔ̃] ( listen); born March 30, 1968), is a Canadian singer. Born to a large family from Charlemagne, Quebec, Dion emerged as a teen star in the French-speaking world after her manager and future husband René Angélil mortgaged his home to finance her first record. In 1990, she released the English-language album Unison, establishing herself as a viable pop artist in North America and other English-speaking areas of the world.

Dion had first gained international recognition in the 1980s by winning both the 1982 Yamaha World Popular Song Festival and the 1988 Eurovision Song Contest. Following a series of French albums in the early 1980s, she signed on to CBS Records Canada in 1986. During the 1990s, with the help of Angélil, she achieved worldwide fame after signing with Epic Records and releasing several English albums along with additional French albums, becoming one of the most successful artists in pop music history. However, in 1999 at the height of her success, Dion announced a hiatus from entertainment in order to start a family and spend time with her husband, who had been diagnosed with cancer. She returned to the top of pop music in 2002 and signed a three-year (later extended to almost five years) contract to perform nightly in a five-star theatrical show at the Colosseum at Caesars Palace, Paradise, Nevada.

Ralph Phillip Klein, AOE (born November 1, 1942) served as the 12th Premier of Alberta. He served as leader of the Progressive Conservative Association of Alberta from 1992 until his retirement in 2006. His tenure as premier ended when the Alberta Progressive Conservatives' new leader, Ed Stelmach, assumed office December 14, 2006, exactly fourteen years after Klein first became Premier. His nickname is "King Ralph", which is a reference both to his political longevity and his perceived^{[by whom?]} autocratic style of leadership.

Klein was born in Calgary to Phillip Andrew Klein (born September 29, 1917) and Florence Harper (1924–2004). His parents separated when he was 6 and he lived with his maternal grandparents in the city's northend. Remarried twice, Gray^[who?] died in 2004. Klein grew up in a working class part of Calgary and dropped out of high school. He joined the RCAF reserves. Completing high school later in life, Klein attended Calgary Business College, and later served as president of that institution. He later studied at Athabasca University. He was public relations official at Red Cross and United Way's offices in Calgary from 1963 to 1969. From 1969 to 1980 he was a television reporter.