January-April: Calder takes classes at the Art Students League, studying Portrait Painting with George Luks for the month of January, Head and Figure with Guy Pene du Bois from January to April, and a drawing class with Boardman Robinson in March and April. (ASL, registration records)

April: Calder takes an evening etching class at the League. (ASL, registration records)

Before 3 May: Calder begins his first job as an artist, illustrating sporting events and city scenes for National Police Gazette. (Calder 1966, 67; Gazette, 3 May)

Before 17 May: Calder moves into his father's studio, 11 East Fourteenth Street, while his parents are traveling in Europe. (Calder 1966, 66, 70; Hayes 1977, 81)

September-November: Calder studies Life Drawing with Boardman Robinson at the League. (ASL, registration records)

24 January: A total eclipse of the sun is visible from the northern part of Manhattan. Along with thousands of New Yorkers, Calder travels uptown, stopping at the steps of the Columbia campus to watch. He makes The Eclipse, an oil painting of the scene. (New York Times 1925)

March: Calder studies Life Drawing with Boardman Robinson at the League. (ASL, registration records)

6-29 March: Calder exhibits The Eclipse at the "Ninth Annual Exhibition of the Society of Independent Artists," Waldorf-Astoria, New York. In the exhibition catalogue he lists his address as 119 East Tenth Street, where he periodically lives with his parents. (CF, exhibition file)

Before 23 May: Calder spends two weeks illustrating the Ringling Brothers and Barnum and Bailey Circus for the National Police Gazette. I could tell by the music what act was getting on and used to rush to some vantage point. Some acts were better seen from above and others from below. (Calder 1966, 73; Gazette, 23 May)

Winter: Calder makes hundreds of brush drawings of animals at the Bronx Zoo and the Central Park Zoo. (Sweeney 1951, 72)