#6 "10 - JUNE" in World HISTORY

1692 - In Salem, Massachusetts, the first of 18 "witches" condemned to death was hanged.

Painter - Francisco Goya

The process of witchcraft, witch-hunting - popular names of the criminal trial in which the accused is charged with practicing magic.
In Europe, most witch trials took place between the 15th and the 17th centuries. Their number increased especially during the Reformation and Counter-Reformation period, and the period of the largest persecution was in the years 1570-1630.

A special development of witchcraft processes took place in modern times. In Scotland, they began with the introduction of Anglicanism. Among the accusations made against the accused, most often appeared: worshiping the devil or pacting with the devil, flying on broomsticks, gathering on sabbaths, cooperating with succulents or succulents, cannibalism (including towards children), reducing diseases, death, impotence, infertility of people and animals, desecration of the mass or the consecrated host, causing hail, destruction of crops, theft. Historians note similarities in witch trials and accusations of ritual murder, such as the accusation of worshiping the devil, kidnapping children or burying blood for magical purposes. It is also noticed the occurrence of both these phenomena within Western Christianity, in the absence of them in the Orthodox church

1829 - The first boat race took place between the Oxford and Cambridge universities.

1859 - German mathematician Bernhard Riemann gave a lecture considered the beginning of the multidimensional Riemann geometry.

The Riemann variety (Riemann space) is a real differential manifold with a positive metric tensor at each point of the manifold. The metric tensor allows to calculate other geometrical values ​​on a variety of curves' lengths, areas, volumes, curvatures (curves, surfaces, spaces), angles, gradients or divergences of functions, rotations of vector fields, and also write equations of geometric objects, eg curves, surfaces, etc. contained in variety.
The Riemannian variety is a metric space. The metric (distance) of the manifold points is defined as the length of the shortest curve contained in and passing through the points. Named for the variety comes from Bernhard Riemann.

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