What were safety and sanitary conditions like in factories?

Which describes the persian empire? choose all that are (a) the persian army defeated the athenians at the battle of marathon. (b) the persians avoided using ideas from the peoples they conquered. (c) cyrus allowed conquered peoples to keep their cultures. (d) darius i built a network of good roads for communication. choose all that are

Transitioning countries must take into account the costs of capitalism, because they will experience its as the great depression's and they experience its benefits.

What was one effect of the emancipation proclamation on african americans in the north?