They are "power breakers" they bring conflicting groups together. The encourage compromise- develop policies favorable to their interests or the groups that support them, organize and persuade voters to elect their candidates to office
It would be very difficult to argue that one person/event can accurately summarize the huge political, social, and economic changes that took place during this era. One must consider that this time period saw the anti-war movement, civil rights movement, environmental movement, and parts of the women's rights movement. No one person or event involved all of these different changes at once.
However, if you were to make this argument you could use the following:
a) Martin Luther King Jr.- His role in the Civil Rights movement and peace movement make him one of the biggest civil rights icons of the 21st century.
b) March on Washington for Jobs and Freedom- This 1963 march included hundreds of thousands of Americans and allowed MLK to give his "I have a dream speech."
Is a band of people who terrorize people or peoples as well as follow though with acts of terrorism, such as bombings, suicide bombing, shoot outs and so forth.
When the founding father of the Republic of China died, some mourned him, while others condemned him. The South China Morning Post weighed the arguments and delivered its own judgment