Use Case: Webix for Online Gantt Chart Maker GanttPRO By Olga Kustova | March 3, 2017. Spring is already in the air with its smell of inspiration and excitement. It is the best time of the year to plant the seeds of future foundations, but I know the people who can already reap the fruits of their labour that started 2 years ago. Gantt charts were named after their developer, Henry L. Gantt, in 1917. However, they have taken on multiple names in the past 100 years of use. Gantt charts are often referred to as Bar charts, writes the team at Project Management Information. This is because the tasks, budget, and time are mapped out in bars across the x and y axis. In any case, with the plenty of various visual tools, you would now be able to use to track projects. A Gantt chart developed by Henry Gantt is over 100 years prior and have been a staple of project directors ever since. The reason is that they are basic and natural to make and utilize, however, show a lot of data initially.