5 October-6 November: Perls Galleries, New York, exhibits "Calder: Animobiles-Recent Gouaches." Klaus Perls writes the catalogue text. (Perls 1971)

31 May: The Calders sponsor an ad in The New York Times calling for Richard Nixon's impeachment: Upon the Impeachment of Richard Nixon, 'for high crimes and misdemeanors, the Constitution of the United States, provides that he, among others shall be removed from office...for conviction of, treason, bribery, or other high crimes and misdemeanors.' (New York Times, 31 May)

10 October-11 November: Perls Galleries, New York, exhibits "Alexander Calder: Oil Paintings." (CF, exhibition file)

Calder gives the Mercury Fountain to the Fundacio Joan Miro, Barcelona. The museum was designed by Sert. The fountain is installed in June 1975. (CF, project file)

Calder donates a lithograph, Balloons, to the Nicaragua Earthquake Relief, organized to aid the victims of the earthquake in Managua. (CF, project file)

24 January-24 February: Galerie Maeght, Paris, exhibits "Calder: Recent Mobiles." The catalogue text includes "Retour au mobile" by Maurice Besset and "Calder ou le poids de l'air" by Andre Balthazar; cover and illustrations by Calder. (CF, exhibition file)

24 May-July: Galerie Maeght, Zurich, exhibits "Alexander Calder: Retrospektive." C. Giedion-Welcker writes the introduction for the catalogue. (CF, exhibition file)

4 June: The Board of Trustees of the National Gallery of Art commission Calder to make a monumental sculpture for its new building. (CF, project file)

3 October-3 November: Perls Galleries, New York, exhibits "Calder at 75-Works in Progress." (CF, exhibition file)

10 October: Calder attends the dedication ceremony for the monumental stabile Stegosaurus, held at Burr Memorial Mall, University of Hartford. He receives an honorary Doctorate of Fine Arts from the University. (CF, project file)