What is the distance between the rails of the railway in Belarus?

The distance between railroad rails in the Republic of Belarus in the Russian Federation - 1520 mm, several years ago I traveled by train from Moscow to Minsk and did not notice when we crossed the Russian-Belarusian border, one wheelset at our train did not change, as it was at the railway station of Chop in Western Ukraine, when I went from Moscow to Prague. From the station of Chop, we went along a narrow train track, remember the horror, the train was fast and both shook our Soviet wide-gauge railway wagons, all night I could not sleep. Interestingly, prior to 1970 gauge in the Soviet Union amounted to 1,524 millimeters between the train rails. Gauge in rail transport, the distance between the inner edges of the rails.
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