1930: After a construction period of only 16 months, the first plants started production at Herøya. A new epoch in the history of Hydro and the industrialization of Norway had begun.
1928: Proximity to the market
The administration centre at Notodden.
1920: Hydro's guest houses
1919: Research as driving force and inspiration
Times were hard at the end of the first World. The workers demanded better conditions. At Notodden and Rjukan a campaign for the 8-hour day was started and won. The picture shows the 1 May procession at Rjukan.
1919: The 8-hour day
