Wilhelm Steinitz
Steinitz was argumentative, and was often in disputes with other chess writers. He was a prolific writer in chess magazines, and defended his ideas vigorously. The debate was bitter and sometimes abusive: it became known as the 'Ink War'. By the early 1890s, Steinitz' approach was more widely accepted and the next generation of top players acknowledged their debt to him, especially his successor as world champion, Emanuel Lasker.