360

Year 360 (CCCLX) was a leap year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Constantius and Iulianus (or, less frequently, year 1113 Ab urbe condita). The denomination 360 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

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National Geographic

National Geographic or NatGeo may refer to:

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National Ballet

National Ballet may refer to:

Canada's National Ballet School

Canada's National Ballet School, also commonly known as the National Ballet School of Canada, is a classical ballet school located in Toronto, Ontario, Canada. Along with the Royal Winnipeg Ballet School, it is a leading provider of professional ballet training in Canada and one of the most renowned ballet schools in the world. Many graduates achieve employment with professional ballet companies internationally, most notably with the National Ballet of Canada.

History

The National Ballet School is the associate school of the National Ballet of Canada, which was formed in 1951 by the English ballet dancer Celia Franca. Franca had previously been a leading dancer with ballet companies in the United Kingdom, before Dame Ninette de Valois recommended her as the best candidate to form a new Canadian ballet company modelled on her own Sadler's Wells Ballet, better known today as The Royal Ballet.

Franca subsequently emigrated to Canada in 1951 and founded the National Ballet of Canada that same year, also hiring the English ballet teacher Betty Oliphant to work with the Company. As the Company became established, Franca and Oliphant decided it was essential to establish their own ballet academy to train dancers for the Company. This led to the formation of the school in 1959, as a feeder school to the Company.

Circle

A circle is a simple shape in Euclidean geometry. It is the set of all points in a plane that are at a given distance from a given point, the centre; equivalently it is the curve traced out by a point that moves so that its distance from a given point is constant. The distance between any of the points and the centre is called the radius.

A circle is a simple closed curve which divides the plane into two regions: an interior and an exterior. In everyday use, the term "circle" may be used interchangeably to refer to either the boundary of the figure, or to the whole figure including its interior; in strict technical usage, the circle is only the boundary and the whole figure is called a disk.

A circle may also be defined as a special ellipse in which the two foci are coincident and the eccentricity is 0, or the two-dimensional shape enclosing the most area per unit perimeter squared, using calculus of variations.

Terminology