Roads from all directions met here in the Middle Ages, and the Chapter of Esztergom had the right to levy custom duties.

The first written contract on mining coal at Dorog, dating from 1845, was drawn up between the Capter of Esztergom and the colliery managers Ferenc Wasshuber and József János Jülke.

Thereafter, many great engineers became involved in developing the Dorog mines, including Vilmos Zsigmondy, the geologist Miksa Hantken, and the mining engineers Henrik Drasche and Sándor Schmidt, who opened up and directed exploitation of richer and richer seams.

Dorog, around the start of the 20th century, was a major mining centre, connected by rail (originally HÉV) with Budapest and by canal with the Danube.

Budapest's factories and population needed more and more coal in the interwar period, so Dorog developed rapidly.

So were a large worker's hostel, a new Catholic church, a Reformed church in Transylvanian style (which was constructed by Transylvanian coalminers who moved there after the Treaty of Trianon), two new schools, a kindergarten, a modern hospital, a mine manager's club, mine manager's residences, a town hall, a World War I memorial and a recreation ground.