This was only the second to be introduced on German railways.
Since 1986 detonators have no longer been used on German railways.
This is the second highest speed that has been achieved so far on German railways.
In the following table all the former German railway divisions are listed, together with their affiliations over time.
There was only two weeks' supply of coal for the German railways, power plants and factories.
German Railways had earlier imposed a 100-mile-an-hour limit on the trains remaining in service.
In the 1960s the German railways wanted to increase the speeds of some of their railway lines.
Her father, who was the son of a Russian university professor, was employed with the German railway.
Until the opening of the first German high-speed railway on 2 June 1991, the route remained unchanged.
North German railways were already regulated to Berlin Time in 1874.