Mathematics and art through the strings as with a bird cage and to see one form within another which excited me." The artists Theo van Doesburg and Piet Mondrian founded the De Stijl movement, which they wanted to "establish a visual vocabulary elementary geometrical forms comprehensible by all and adaptable to any discipline". Many of their artworks visibly consist of ruled squares and triangles, sometimes also with circles. De Stijl artists worked in painting, furniture, interior design and architecture. After the breakup of De Stijl, Van Doesburg founded the Avant-garde Art Concret movement, describing his 1929–1930 "Arithmetic Composition", a series of four black
Piet van Reenen Piet van Reenen Piet van Reenen born (17 January 1909 – 8 June 1969) was a Dutch former professional footballer who was a prolific goalscorer at Ajax. With 278 goals in 240 matches from 1929 to 1943, he is the club's all-time top goal scorer. He was also the club's top goal scorer for 9 consecutive seasons, from 1929–30 to 1937–38. Van Reenen began his football career at UVV Utrecht, where he made 30 goals in 37 games. His debut for UVV took place on October 3, 1926 when he was 17 years old in the second game of the