Answer: instant communication over distance through speech
The telephone is a device that permits two or more persons to have an instant communication over distance through speech. It was an innovation made possible by Alexander Graham Bell. He worked at a school for the deaf and it was his focus on speech, hearing and amplification led to its invention in 1876.
Social Darwinism is a term for the collective ideas or
policies that emerged during the 19th century. During 19th
century, European countries were expanding their empire. This lead to the
colonization of Asia and Africa. Racism has been rampant at that time.
No.
there really isn't an excuse to why anybody isn't treated or seen as an equal. Everybody is and should be treated an equal. In back then, if you're going to create equality and speak equality you should probably practice what you preach.