Vertical structures that form the sides of buildings or enclose spaces; barriers or obstacles.
From Old English 'weall,' from Latin 'vallum' meaning 'rampart' or 'fortification.' Romans brought both the word and the concept of strategic walls to England during conquest.
The oldest wall still standing is Jericho's wall from 9,000 years ago—proving that the moment humans settled in one place, the first thing they did was build walls, making them one of our most essential tools for creating civilization and identity.
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