Answer:
What replaces steam? What new power source was developed in the late 1800s? In the late 1800s, a new power source—electricity—replaced steam as the dominant source of industrial power.
The answer for this one would Be A because
Explanation:
In April 1994 the Mandela-led ANC won South Africa's first elections by universal suffrage, and on May 10 Mandela was sworn in as president of the country's first multiethnic government.
Answer:
Martin Luther King Jr Day also known as civil rights day, comemorates the birth of Martin Luther King, Jr.
Explanation:
aka (number 2)
I think it is #1. I am assuming this is the Revolution that they are talking about.