History of rail transport in Estonia
The history of rail transport in Estonia starts in 1870 when a railway line was opened connecting Paldiski, Tallinn, Tapa and Narva; the line extending all the way to Saint Petersburg in Russia. == Beginnings of Estonian railways in Imperial Russia == The first railway line to be built in Estonia was the Paldiski – Tallinn – Narva – Gatchina line constructed in 1870; Baltic German nobility provided the impetus for the construction of the line, though because of the Russian influence the line was built to 1524mm (5 ft) gauge to connect with the line from Saint Petersburg to Warsaw .
Source: Wikipedia — History of rail transport in Estonia (CC BY-SA 4.0)