Considered revolutionary when Henry Gantt first published this planning tool around 1910, a Gantt chart is a type of bar chart that illustrates a project schedule. It illustrates the start and finish dates of the various activities of a project.

A Gantt chart is a type of bar chart

that illustrates a project schedule.

Explanation:

Named after its inventor, Henry Gantt (1861–1919), who designed such a chart around the years 1910–1915. Modern Gantt charts also show the dependency relationships between activities and current schedule status.

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the space race was a battle to make advanced technology to get to the moon and to get a better understanding of space.