Triumphal Arches

What was the purpose of Triumphal arches and how did they fulfil this Purpose
Alongside with many other great buildings in Rome such as Statues, aedicular shrines and columns, triumphal arches were there to commemorate victories on the battle field or other important episodes in history. They were also used to maintain the memory of important men. Triumphal arches and columns to a certain extent were more special. They weren't used just in Rome, but in other provinces also, and there is still remaining evidence on this.
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