Britain's imperialist practices were often only great for Britain, not for the colonies, which was seen in the US, India, China, and many many other colonies which were on the verge of disaster because of imperialist ruling.
The wright brothers- 1903
Thomas edison-1879
most likely D but the answers for that question was worded weird. Probs why you put it on brainly cause it took me a while to even understand what the answers meant!!
The County unit system. See the link below that will take you to that.
I think it’s C, because slaves were not allowed to learn to read, so if you had to be literate to vote, most slaves wouldn’t be able to.