at the beginning of the Industrial Revolution as public showcases. Expo '74 was the first fair in decades that did not focus on the space age, futuristic themes, or utopian ideas of living. An environmental theme was decided upon by the organizing committee, however there was some uncertainty about it because it had never been used previously by a World's Fair to that time. After considering several other slogans, such as "How Man Can Live, Work and Play in Harmony With His Environment", Expo '74 settled on "Celebrating Tomorrow's Fresh New Environment." Uncertainty about the ability of a city the modest size of Spokane to create a successful event caused many nations and corporations to hesitate about making major investments in the fair. Kodak, General Motors, and Ford hosted pavilions at this fair but they were scaled down in size and presence compared to the exhibits constructed for the New York Worlds Fair ten years earlier. For the first time since the company's beginning, General Electric did not have a fair pavilion but it sponsored the musical group Up with People that performed during the summer at the fair. Logo Expo '74's official logo debuted in March 1972 and was designed by Spokane artist Lloyd L. Carlson. The logo is a stylized Möbius strip, an endless three-dimensional form, which was chosen to symbolize the continuity of life and mankind's relationship with the environment. The three colors, blue, green, and white, also symbolized the environmental theme of the fair, representing the purity of clean water, the unspoiled natural beauty of growing plants and trees, and the cleanliness of fresh air, respectively. Opening day US President Richard Nixon presided over the fair's opening ceremony on May 4, 1974, where he addressed a crowd of some 85,000. Nixon had high praise of the fair and its environmental theme, noting Washington state's role as the first state in the nation to have environmental protection laws, and urged nations to work together to clean up the environment around the world. The opening of Expo '74 occurred in the midst of the Watergate Scandal investigation, which Nixon was deeply embroiled in, bringing the presence of a number of protestors and hecklers, some of whom shouted "Jail to the Chief!", to Nixon's speech. The hecklers were ignored by Nixon, who continued to give his opening day remarks. In keeping with the fair's environmental theme, other opening day