The modern Gantt chart was already well established throughout
industries as early as the 1990s, but its origins can be traced back
much further to the late 19th century. In 1896, Polish engineer Karol
Adamiecki created the “harmonogram,” the earliest known version of what
would later come to be known as the Gantt chart. Concurrently, American
mechanical engineer Henry Gantt was developing similar ideas on how to
organize tasks within production industries.
In 1923, consulting engineer Henry Wallace Clark described the
structure, usage, and benefits of Gantt’s work in his book The Gantt
Chart; a Working Tool of Management, coining the term Gantt Chart and
establishing it within the modern management lexicon. And while the
first Gantt charts were hand drawn, making them poorly suited to the
growing complexities of advancing manufacturing processes of the 1950s,
the eventual introduction of computing software brought Gantt charts
back into serviceability.
Today, Gantt charts are among the most commonly used planning and charting techniques in the world.