How did kilwa become the wealthiest and most powerful city-state of east africa's
coastal region in the 1300s and 1400s?

i think they came to washington to protest

about 3,040,000 results (1.57 seconds)

explanation:

"o" (and any subsequent words) was ignored because we limit queries to 32 words.

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.