This Spanish explorer went on an expedition to Mexico, conquered the Aztecs and gained access to their gold and territory. (juan De Onate) (Estevanico) (Hernan Cortez) (Alvarez De pined)(Christopher Columbus) which person is it

what are the others?

which

like dude you only explained

the problem not the

answer: in 1900, there were no "workplace safety laws"!

explanation: at the beginning of this century, workers in the united states faced remarkably high health and safety risks on the job.

a century ago in 1900 about three hundred out of every one hundred thousand miners were killed on the job each year.

[industria] developments occurred within a legal and regulatory climate that diminished employer’s interest in safety. as a result, americans developed production methods that were both highly productive and often very dangerous.