Original: However the majority cover the 19th and 20th centuries, reflecting Sheffield’s dominance of the cutlery industry during those centuries.
Simplified: However the majority cover the 19th and 20th centuries, reflecting Sheffield’s leading role in the cutlery industry during those centuries.
Simplified: However most cover the 19th and 20th centuries, showing Sheffield’s importance in the cutlery industry during those centuries.
Simplified: However the majority cover the 19th and 20th centuries, reflecting Sheffield’s dominance of the cutlery industry during those centuries.