1913
initial state
One road and one railway line, three dates. Pin an object: it stays in the same place in the diagram, and in each row you will see what is known about it and what is missing.
initial state
decision not carried out
The years 1914–1918: the material on this page does not describe events in the corridor.
An illustrative diagram, not a map: distances and the position of the lines are schematic. The stations stand in the same place in every row; only the border moves.
Each edition is read in the same way: administration, infrastructure, operation. Links [1]–[3] lead to the sources given in version V2; they were not reopened here.
It is easy to confuse a change of state with a change in traffic. On 18 January 1920 the Polish administration took over power in Działdowo [2]. This date is not evidence that a train ran that day, that a customs house began to operate, or that the course of a road changed. The material on this page contains no timetable, tariff or clearance document.
A counter-example from the diagram itself: in 1919 Działdowo has already been awarded to Poland, yet it is still under German authority. If the written provision were enough, the town would have been Polish from 28 June. Pin the town hall and compare the two boxes, “Formally” and “In practice”.
The “gateway” in the title is an interpretation by the author of the Atlas: a frame for reading a pair of towns as two states, and then as one. It is not the name of an object. It concerns administration, that is, who ruled, not transport. Traffic through this corridor is not documented here.
The links come from version V2. They were not reopened when this version was built, so each needs to be checked by the editors. The descriptions in the rows and editions are summaries of the V2 material, not new research.