The Institute was largely the creation of Walter Paepcke, a Chicago businessman who had become inspired by the Great Books program of Mortimer Adler at the University of Chicago. In 1945, Paepcke visited Bauhaus artist and architect Herbert Bayer, AIA, who had designed and built a Bauhaus-inspired minimalist home outside the decaying former mining town of Aspen, in the Roaring Fork Valley. Paepcke and Bayer envisioned a place where artists, leaders, thinkers, and musicians could gather. Shortly thereafter, while passing through Aspen on a hunting expedition, oil industry maverick Robert O. Anderson met with Bayer and shared in Paepcke's and Bayer's vision. In 1949, Paepcke organized a 20-day international celebration for the 200th birthday of Germanpoet and philosopherJohann Wolfgang von Goethe. The celebration attracted over 2,000 attendees, including Albert Schweitzer, José Ortega y Gasset, Thornton Wilder, and Arthur Rubinstein. In 1949, Paepcke founded the Aspen Institute; and later the Aspen Music Festival and eventually the International Design Conference at Aspen. Paepcke sought a forum "where the human spirit can flourish", especially amid the whirlwind and chaos of modernization. He hoped that the Institute could help business leaders recapture what he called "eternal verities": the values that guided them intellectually, ethically, and spiritually as they led their companies. Inspired by philosopher Mortimer Adler's Great Books seminar at the University of Chicago, Paepcke worked with Anderson to create . In 1951, the Institute sponsored a national photography conference attended by Ansel Adams, Dorothea Lange, Ben Shahn, Berenice Abbott, and other notables. During the 1960s and 1970s, the Institute added organizations, programs, and conferences, including the Aspen Center for Physics, the Aspen Strategy Group, Communications and Society Program and other programs that concentrated on education, communications, justice, Asian thought, science, technology, the environment, and international affairs. In 1979, through a donation by Corning Glass industrialist and philanthropist Arthur A. Houghton Jr. the Institute acquired a 1,000-acre campus on the eastern shore of the Chesapeake Bay in Maryland, known today as the Wye River Conference Centers. In 1996, the first Socrates Program seminar was hosted. In 2005, it held the first Aspen Ideas Festival, featuring leading minds from around the world sharing and speaking on global issues. The Institute, along with The Atlantic, hosts the festival annually. It has trained philanthropists such as Carrie Morgridge. Since 2013, the Aspen Institute together with U.S. magazine The Atlantic and Bloomberg Philanthropies has participated in organizing the annual CityLab event, a summit dedicated to develop strategies for the challenges of urbanization in today's cities. Walter Isaacson was the president and CEO of Aspen Institute from 2003 to June 2018. Isaacson announced in March 2017 that he would step down as president and CEO at the end of the year. On November 30, 2017, Daniel Porterfield was announced as his successor. Porterfield succeeded Isaacson on June 1, 2018. In April 2020, the company received approximately $8 million in federally backed small business loans as part of the Paycheck Protection Program. The company received scrutiny over this loan, which meant to protect small and private businesses. The Washington Post noted their large endowment and membership of billionaires made this problematic. Dele Olojede, a fellow at the institute, called it "contrary to the stated purpose of this institute", that "one of America’s most elite institutions thinks it is okay to take the money", going on to say "Those who purport to be values-based and public-spirited leaders cannot at the same time put self interest first, when there is so much human suffering and death". The day after Olojede and the Washington Post highlighted the funding, Aspen Institute announced they would return it, stating "Upon listening to our communities and further reflection, we have made the decision to return the loan".