The First Socialist Movement is the name of two events by the same name, which can happen to 
Denmark. They are related, and the first one leads to the next, and they lead to the event The Forced Emigration of Louis Pio depending on the choices taken. They are about one of the most famous Danish socialists, Louis Pio.
The events cannot happen to 
Scandinavia even it is formed by Denmark.
Event Description
Both events have the same description: In 1871, Louis Pio formed the Danish chapter of the socialist international and began agitating for social reforms and the unification of workers.
The first event
It can happen between 1870 and 1875 if the ruling party is not socialist and Denmark has not allowed all trade unions.
It has a mean time to happen of 8 months, which is decreased by 25% in 1971, by 5% after 1872 and yet another 5% after 1874.
It has a single option, which increases consciousness for all 
labourers, 
artisans, 
clerks, 
craftsmen and 
Soldiers by 1.
The Second Event
The second event called The First Socialist Movement can happen after the first one between 1871 and 1876. Still Denmark must not have a socialist ruling party, and they must not have allowed all trade unions.
It has a mean time to happen of 8 months, which is decreased by 25% in 1972, by 5% after 1873 and yet another 5% after 1874.
Here there are two option.
1) Lock them up! which increases consciousness for all labourers, artisans, clerks, craftsmen and Soldiers by 2. It also leads to the event The Forced Emigration of Louis Pio
2) Leave them be which enacts the trade union policy all allowed. On top of that it gives all all 
capitalists, artisans, clerks and 
aristocrats 2 consciousness but decreases militancy of labourers, craftsmen and 
farmers by 1.