When did industry was monopolized by one company or trust during the glide age

Generally speaking, when an industry was monopolized by one company or trust during the Gilded Age, then "Workers often earned less because fewer businesses were competing for their services," since the monopolies could pay the workers practically whatever they wanted.

wood carving remains today the primary sculptural art form of the sub saharan continent. african art history shows the earliest wooden sculptures from the 17th c are attributed to the kuba, central zaire but the earliest surviving sub-saharan sculpture is a zoomorphic head found in 1928 in central angola.

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