100 years ago, Wassily Kandinsky was one of the first painters to develop a 100% abstract style at a time when many artists were working in 'half abstract' styles like cubism and so on. Almost immediately Kandinsky's abstract work got a lot of attention and after a few years (around the time of World War I) other painters also got into pure abstraction. Today Malevich, Rothko,
Mondrian, De Kooning and Jackson Pollock are all famous for their abstract works.