What do you call a person who makes a change?

Where is the world biggest orphanage? The non-profit organization Mensa International was founded in what year? What does organizational stakeholders and characterize social consciousness today? Did Albert Einstein have people that supported him? Did the black eyed peas members meet in orphanage? What did people do for social life in the Romantic Era? What does a draft classification of 4 h mean? What are examples of efficient and effective organizations? What does freemason has to do with the statue of liberty? Where can one find Caffmos Community online? What is the value of a 1940 Boy Scouts of America campaign hat? Who are the charter oaks MC affiliated with? How do you write a letter requesting someone to be a patron in a group? Is an eagle scout required for admission into BYU? How do community land trusts benefit a community? Did the Ancient Romans have children's homes or orphanages? Group of company or companies is correct? When did omg start? What is the difference between a condominium and a home owners association? What organization of concepts is a routine of link actions or behaviors that serve a particular purpose?