William Charles "Bill" Ayers (born December 26, 1944) is an American elementary

Elementary school

An elementary school or primary school is an institution where children receive the first stage of compulsory education known as elementary or primary education. Elementary school is the preferred term in some countries, particularly those in North America, where the terms grade school and grammar...

 education theorist

Education theory

Educational theory can refer to either speculative educational thought in general or to a theory of education as something that guides, explains, or describes educational practice....

 and a former leader in the movement that opposed U.S. involvement in the Vietnam War. He is known for his 1960s activism

Activism

Activism consists of intentional efforts to bring about social, political, economic, or environmental change. Activism can take a wide range of forms from writing letters to newspapers or politicians, political campaigning, economic activism such as boycotts or preferentially patronizing...

 as well as his current work in education reform

Education reform

Education reform is the process of improving public education. Small improvements in education theoretically have large social returns, in health, wealth and well-being. Historically, reforms have taken different forms because the motivations of reformers have differed.A continuing motivation has...

, curriculum

Curriculum

See also Syllabus.In formal education, a curriculum is the set of courses, and their content, offered at a school or university. As an idea, curriculum stems from the Latin word for race course, referring to the course of deeds and experiences through which children grow to become mature adults...

, and instruction. In 1969 he co-founded the Weather Underground

Weather Underground (organization)

Weatherman, known colloquially as the Weathermen and later the Weather Underground Organization , was an American radical left organization. It originated in 1969 as a faction of Students for a Democratic Society composed for the most part of the national office leadership of SDS and their...

, a self-described communist revolutionary

Revolutionary

A revolutionary is a person who either actively participates in, or advocates revolution. Also, when used as an adjective, the term revolutionary refers to something that has a major, sudden impact on society or on some aspect of human endeavor.-Definition:...

 group that conducted a campaign of bombing public buildings during the 1960s and 1970s, in response to U.S.