Mark

Deutsche Mark - the name of the former currency in Germany, now replaced by the Euro.
East German Mark (Ostmark) - the name of the former currency in East Germany, replaced by the Deutsche Mark
Markka/Mark - the name of the former currency in Finland, now replaced by the Euro.
Mark (English money) - a former unit of account in Britain.
Mark the Evangelist - is the name of one of the gospel writers of the life of Jesus Christ.
Gospel of Mark
Mark, Sweden - a municipality in Sweden.
Mark (victim) - the victim of a con game.
Mark (earldom) - medieval state in Westphalia, part of the Holy Roman Empire
Mark (computing) - a delimiter at the beginning or end of a transmission sequence
Mark frequency - in radio transmission; see frequency-shift keying
In The Lord of the Rings, the fictional country of Rohan is sometimes known as the Mark. The name probably taken from the German Mark, meaning border.
In German, Mark (=margravate) also denotes a border area of the Holy Roman empire. It was ruled by a margrave. Examples are the Altmark, Neumark and Mark Brandenburg.

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