The Lyceum Movement, which began in the early 19th century, provided lectures, debates, and other educational programs to adults in rural areas.

The Chautauqua Movement aimed to promote social and cultural development by offering lectures, concerts, and other cultural events to adults in rural areas.

Edward Lindeman is considered the father of adult education in the United States due to his pioneering work in the field and his influential book, \"The Meaning of Adult Education.\"

Andragogy, as defined by Malcolm Knowles, focuses on the learner's experience and knowledge as the primary basis for designing and delivering adult education programs.

Paulo Freire's critical pedagogy emphasizes the learner as an active participant in the learning process, engaging in dialogue and critical reflection to challenge and transform existing social structures.

The Cooperative Extension Service was established to provide agricultural education and technical assistance to farmers and rural communities in the United States.

The passage of the Smith-Lever Act in 1914 is considered a major milestone in the history of adult education in the United States as it provided federal funding for agricultural extension programs.

The National Center for Education Statistics was established to collect, analyze, and disseminate data on education in the United States.

All of the factors mentioned contributed to the growth of adult education in the 20th century, as industrialization and urbanization led to new job demands, higher education expanded access to learning opportunities, new technologies facilitated distance learning, and changing demographics created diverse learning needs.

Lifelong learning encompasses all of the above goals, as it aims to provide individuals with the knowledge, skills, and attitudes necessary for personal, professional, and social development throughout their lives.