El format inicial del diagrama el va desenvolupar Henry L. Gantt (1861- 1919) l' any 1910 (veieu Work, Wages and Profit per H. L. Gantt, publicat per The Engineering Magazine, Nova York, 1910).
The initial format of the chart was developed by Henry L. Gantt (1861-1919) in 1910 (see Work, Wages and Profit by H. L. Gantt, published by The Engineering Magazine, NY, 1910).