I don't know what the original empire was, so I don't know what the "others" are, but here some examples:
- the Aztec empire. Contribution: the cultivation of cocoa plant
-the Roman Empire. Contribution: roads, aqueducts, spread of latin script
- Islamic Empire. Contribution: maintenance of ancient Greek knowledge in their libraries and contributions to medical knowledge
Answer:
Since the mid-20th century, dramatic change has taken place in gender relations in the United States, as illustrated by women's labor force participation rising from 32% in 1950 to 57% in 2018 and men's falling from 82% to 69% (U.S. Bureau of Labor Statistics, 2017, 2018b).