History

History

The branch of knowledge dealing with past events.

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History > Medieval

battlements

History; Medieval

Notched parapet built on top of a wall and having alternating merlons and crenels for decoration or defense.

oratory

History; Medieval

Private chapel for prayer, generally small, sometimes in a castle.

machicolation

History; Medieval

Projecting gallery at the top of a castle wall, supported by a row of corbeled arches and having openings in the floor through which stones and boiling liquids could be dropped on ...

hyperboloid

History; Medieval

Either of two quadric surfaces generated by rotating a hyperbola about either of its main axes and having a finite center with certain plane sections that are hyperbolas and ...