Gate
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2008-07-04T15:56:20Z
JAnDbot
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robot Modifying: [[zh:城門]]
{{Unreferenced|date=February 2008}}
{{Otheruses1 | the point of entry or exit}}
[[Image:Sankt Petersburg Winterpalast 2005 e.jpg|thumb|right|250px|Gates to official residences often feature elaborate [[ironwork]].]]
A '''gate''' is a point of entry to a space enclosed by [[wall]]s, or an opening in a [[fence]]. Gates may prevent or control entry or exit, or they may be merely decorative.
Larger gates can be used for a whole building, such as a [[castle]] or [[fortified town]], or the actual [[door]]s that block entry through the gatehouse. Today many gate doors are opened by an automated [[gate operator]].
== History ==
In ancient and [[medieval times]], gatehouses of [[cities]] and castles were heavily defended and [[fortified]] to prevent breaching of the gates. Often the gate would consist of several pairs of doors and [[iron]] [[grate]]s along a channel of rocks through the gatehouse. The top of the tunnel commonly had killing holes to allow defenders to attack [[invader]]s trying to breach the inner doors. [[Drawbridge]]s were common in conjunction with gates to facilitate passing the [[moat]]; moats were often used to increase the effective height of the walls.
A number of gates are used to mark military victories or important occasions as in a [[triumphal arch]].
== See also==
*[[Border]], [[threshold]] or [[barrier]]
*[[City gate]]
*[[Gate (airport)]]
*[[Gatehouse]]
*[[Doorway]] or [[gateway]]
*[[Kissing gate]]
*[[Lych gate]]
*[[Torii]]
*[[Triumphal arch]]
*[[Turnstile]]
*[[Noise gate]]
<gallery>
Image:Gate ajar.jpg|This gate doesn't prevent entry but clearly suggests a [[borderline]].
Image:Gate at Stevens-Coolidge Place, Andover, Massachusetts.JPG|A small but elegant gate to a meadow path.
Image:Pergamonmuseum Babylon Ischtar-Tor.jpg|[[Ishtar Gate]] is the oldest [[city gate]] in existence.
Image:CroppedCRS.jpg|In modern times, electronic [[Gateway (telecommunications)|gateways]] provide protection, and allow communication traffic to pass.
Image:Mahmoud Ahmadinejad at Columbia 8 by David Shankbone.jpg|This gate at [[Columbia University]] was closed to prevent protesters of [[Mahmoud Ahmadinejad]] from entering the campus in 2007. Here, students stand to get a better look at the protest.
</gallery>
*[http://www.gatesandstilesofthebritishisles.co.uk Photos and locations of gates and stiles in Britain]
{{Commonscat|Gates}}
[[Category:Fortification]]
[[Category:Walls]]
[[Category:Doors]]
[[Category:Gates| ]]
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[[cs:Brána]]
[[de:Tor (Architektur)]]
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[[uk:Брама]]
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