1972 (MCMLXXII) was a leap year starting on Saturday of the Gregorian calendar, the 1972nd year of the Common Era (CE) and Anno Domini (AD) designations, the 972nd year of the 2nd millennium, the 72nd year of the 20th century, and the 3rd year of the 1970s decade.
Within the context of Coordinated Universal Time (UTC) it was the longest year ever, as two leap seconds were added during this 366-day year, an event which has not since been repeated. (If its start and end are defined using mean solar time [the legal time scale], its duration was 31622401.141 seconds of Terrestrial Time (or Ephemeris Time), which is slightly shorter than 1908). 
The Official Led Zeppelin Playlists.
You’re watching the official video for ‘Immigrant Song’ by Led Zeppelin. This version of Immigrant Song serves as a wonderfully evocative bridge between the early, understated Zeppelin of the Albert Hall era and the full-blown grandeur their performances would assume throughout the rest of the seventies.
Photo from the Nobel Foundation archive.
Their work and discoveries range from how cells adapt to changes in levels of oxygen to our ability to fight global poverty.
Major paper published. Study criticized because it is not known if men are being treated. Local physicians asked to assist with study and not to treat men. Decision was made to follow the men until death.
The U.S. government also promised to give lifetime medical benefits and burial services to all living participants; the Tuskegee Health Benefit Program (THBP) was established to provide these services.
Early on, Muskie lined up leading Democratic politicians to endorse him, including Gov. John Gilligan of Ohio; Leonard Woodcock, president of the United Auto Workers; Iowa Sen. Harold Hughes; and Pennsylvania Gov. Milton Shapp. Muskie ran an exhausting campaign that stretched his energies and resources thin. Through January and February 1972, he shuttled between New Hampshire, Florida, Wisconsin and all the other necessary stops. On February 26, in New Hampshire, the pressure began to tell. Mounting the bed of a truck parked outside the offices of the conservative Manchester Union Leader, the state’s largest newspaper, Muskie launched an attack on the paper’s publisher, William Loeb. As he spoke of Loeb’s unflattering remarks about Mrs. Muskie, the senator’s voice cracked, and the crowd saw tears form in his eyes. The spectacle badly dented the image Muskie had tried all year to present—that of a calm, trustworthy, serene candidate. When New Hampshire voted on March 7, Muskie won the hollowest of victories, 46 percent of the vote, far below the predicted 65 percent. McGovern, reaping the benefit of his early start and vigorous organization, was close behind with 37 percent.
The Muskie campaign limped on to Wisconsin for its April 4 primary. With busing receding from importance, property tax became central, particularly for the Wallace and McGovern campaigns. McGovern’s year-old campaign organization paid off, as he finished first with 30 percent of the popular vote. Surprisingly, Wallace finished second with 22 percent, buttressed by the fact that some one-third of the state’s Republican voters crossed party lines to vote for him. Humphrey, who had worked 19-hour days in the state where he was supposed to be beloved as “our third senator,” finished third with 21 percent. Muskie finished a distant fourth with 10 percent. The Wisconsin vote finished the candidacy of Lindsay.