In which country did John Calvin start promoting Reformation ideas?

Calvinism spread into England, Scotland, France, the Netherlands, the English-speaking colonies of North America, and parts of Germany and central Europe. This expansion began during Calvin’s lifetime and was encouraged by him.

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.

it reintroduced the two-party system.