how did us labor unions treat chinese immigrants in the 1800s?

U.S. Labor union did not allow Chinese immigrants to become members.

Explanation:

Labor unions in the United States are organizations that are formed by workers from various industries that are recognized under "US labor law". Labor union opposed immigrants because they thought that the American workers will be undermined.  

In the 1850’s, Chinese immigrants established Chinatowns in cities mainly on the western coast of the United States as U.S. Labor union did not allow Chinese immigrants to become members. In 1882, American government passed “Chinese Exclusion Act” to stop Chinese immigrants from becoming American citizens.

the exact role and status of women in the roman world, and indeed in most ancient societies, has often been obscured by the biases of both ancient male writers and 19-20th century ce male scholars, a situation only relatively recently redressed by modern scholarship which has sought to more objectively assess women's status, rights, duties, representation in the arts, and daily lives; and all this from almost exclusively male source material dealing with a male-dominated roman world.

women in mythology

unlike some other ancient cultures such as the greeks who had formed a creation myth where woman was a creature secondary to man and, more specifically, in the form of pandora, a bringer of unhappiness and vices, the romans had a more neutral approach where humanity, and not specifically the male, was created by the gods from earth and water. ovid's metamorphoses, for example, does not specify whether the first human was a man or a woman. at least in a physical sense then men and women were not regarded as belonging to a different species as in the greek world, a view often reiterated in roman medical treatises.

b.

one company controls all the means of production of a product.

~coco