The Time Machine pays a visit to 1974 this time. Dolly Parton made perhaps her best album. Stevie Wonder wrote probably his most political song yet, and he wrote a song for the band Rufus. Barry White pulled double duty with his Love Unlimited Orchestra and his own music. Richard Nixon became the first president to resign from office, and Happy Days began its 11-year run. It's all 1974, our year on Time Machine Tuesday.