One of the main roles of police during the 19th century was "strike-breaking." Why did the police engage in these actions and who benefitted from these actions?

The police engaged in strike-breaking because in the 19th century, labor unions were starting to emerge, and they had a low reputation among the political ruling class and the economic elite. This is because labor unions represented and obstacle to their profits.

Those who benefited were mainly the economic elite who owned the enterprises. These owners did not want to meet the demands of the labor unions, like an 8 hour work-day, simply because these demands represented a reduction in profits.

c. bounced back and forth from worthless to worth a lot and back to worthless

as general terms,  indian territory,  the indian territories, or  indian country  describe an evolving land area set aside by the  united states government  for the relocation of  native americans  who held  aboriginal title  to their land. in general, the tribes ceded land they occupied in exchange for  land grants  in 1803. the concept of an indian territory was an outcome of the 18th- and 19th-century policy of  indian removal. after the  civil war(1861–1865), the policy of the government was one of  assimilation.