With the construction of the flat route through the Alps, Switzerland has created travel history.

From the first sketch for a base tunnel between Amsteg and Bodio in 1947, through the final breakthrough in October 2010, to the ceremonial inauguration and opening in 2016, the plans had to be repeatedly revised.

An overview of the most important milestones in this construction project of the century, from the nineteen-forties to the present day, is contained in the detailed history.