Curb
A curb (American English) or kerb (British English) is the edge where a raised sidewalk/pavement or road median/central reservation meets a street/other roadway. == History == Although curbs have been used throughout modern history, and indeed were present in ancient Pompeii, their widespread construction and use only began in the 18th century, as a part of the various movements towards city beautification that were attempted in the period.